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1 What are Coral Reefs - NOAA Coris
https://www.coris.noaa.gov/about/what_are/
Appearing as solitary forms in the fossil record more than 400 million years ago, corals are extremely ancient animals that evolved into modern reef-building ...
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2 Coral reef - Wikipedia
https://en.wikipedia.org/wiki/Coral_reef
Most coral reefs exist in waters less than 50 m deep. Some inhabit tropical continental shelves where cool, nutrient-rich upwelling does not occur, such as the ...
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3 How Old Are Coral Reefs? - ReefCause
https://conservation.reefcause.com/how-old-are-coral-reefs/
According to Live Science, the Great Barrier Reef is around 500,000 years old with reefs growing in the area for millennia. However, the current ...
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4 What Are Coral Reefs? | Live Science
https://www.livescience.com/40276-coral-reefs.html
Most of the substantial coral reefs found today are between 5,000 and 10,000 years old, according to CORAL. They are most often found in warm, ...
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5 Coral reefs | Biomes of the World - PHP @ Radford
https://php.radford.edu/~swoodwar/biomes/?page_id=837
Coral reefs have existed for some 100 million years, but most living reefs originated or renewed their growth at the end of the Pleistocene (about 10,000 ...
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6 Coral Reefs: Past, Present and Future
http://www.columbia.edu/itc/eeeb/baker/N0316/Lecture%205/page2.htm
Reefs, in some shape or form, have been around for a very long time. Approximately 3.5 billion (3,500,000,000) years ago microbialites (calcareous organo- ...
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7 Corals and Coral Reefs - Smithsonian Ocean
https://ocean.si.edu/ocean-life/invertebrates/corals-and-coral-reefs
Coral reefs are the most diverse of all marine ecosystems. ... Shallow water corals that live in warm water often have another source of ...
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8 The Planet Has Lost Half of Its Coral Reefs Since 1950 | Science
https://www.smithsonianmag.com/science-nature/the-planet-has-lost-half-of-coral-reefs-since-1950-180978701/
Scientists have long known that reefs are in peril, ... which live in their tissue and produce food the corals need to survive.
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9 Basic Information about Coral Reefs | US EPA
https://www.epa.gov/coral-reefs/basic-information-about-coral-reefs
When you look at a coral colony, only the thin layer on its surface is live coral; the mass beneath is the calcium carbonate skeleton that may ...
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10 Coral: A Very Brief History - Reefbites
https://reefbites.com/2020/09/09/coral-a-very-brief-history/
This leads us to the oldest known coral reef, dating back 390 million years to the Devonian Period. The Devonian is known for Tiktaalik, ...
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11 Coral Reefs - Our World in Data
https://ourworldindata.org/coral-reefs
In fact, coral species tend to live in waters at the very top of their temperature optimal range which is bad news for their prospects as the oceans warm. A ...
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12 Scientists are trying to save coral reefs. Here's what's working.
https://www.nationalgeographic.com/science/article/scientists-work-to-save-coral-reefs-climate-change-marine-parks
“We know that because there have been six major coral reef extinctions in the geologic past where they were basically wiped out. All those have ...
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13 Over half of coral reef cover across the world has been lost ...
https://www.nhm.ac.uk/discover/news/2021/september/over-half-of-coral-reef-cover-lost-since-1950.html
Coral reefs have declined by over half since the 1950s as they suffer from the effects of climate change and overfishing.
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14 Nearly All Coral Reefs Will Disappear Over The Next 20 Years ...
https://www.forbes.com/sites/trevornace/2020/02/24/70-90-percent-of-coral-reefs-will-disappear-over-the-next-20-years-scientists-say/
› sites › trevornace › 2020/02/24
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15 Why there is hope that the world's coral reefs can be saved
https://www.theguardian.com/environment/2020/oct/17/why-there-is-hope-that-the-worlds-coral-reefs-can-be-saved
Coral reefs are ancient and highly adaptable – they first emerged nearly 500 million years ago; those corals went extinct, and the corals that ...
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16 Coral | National Geographic Society
https://www.nationalgeographic.org/encyclopedia/coral/
Learn the risks our world's coral reefs are facing and what they mean ... 25 percent of all marine species live in and around coral reefs, ...
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17 Coral Reefs of the High Seas: Hidden Biodiversity Hotspots in ...
https://www.frontiersin.org/articles/10.3389/fmars.2020.567428/full
Due to the remarkable biodiversity and myriad ecosystem services, coral reefs have a long history of protection in many countries.
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18 Florida's Coral Reefs
https://floridadep.gov/rcp/rcp/content/floridas-coral-reefs
Florida's Coral Reef came into existence 10,000 years ago when sea levels rose following the last Ice Age. Reef growth is relatively slow; ...
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19 Where Are Coral Reefs Located?
https://coral.org/en/coral-reefs-101/geography/
More than 100 countries have a coral reef within their borders, and over half of the world's coral reefs are found within six countries: Australia, Indonesia, ...
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20 What would happen if there were no coral reefs?
https://reef-world.org/blog/no-coral-reefs
In fact, scientists at 2020's Ocean Sciences Meeting estimated that more than 90% of all coral reefs are expected to die by 2050 (The Guardian).
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21 Coral Reefs | Learn Science at Scitable - Nature
https://www.nature.com/scitable/knowledge/library/coral-reefs-15786954/
Facilitative interactions are also a hallmark of coral reef ecosystems. Juvenile wrasses, blennies, gobies, and shrimps live on large corals that are frequented ...
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22 Coral Reefs - Living Oceans Foundation
https://www.livingoceansfoundation.org/wp-content/uploads/2013/08/Riegl_CoralReefThreats.pdf
Coral reefs are iconic, threatened ecosystems that have been in existence for ∼500 mil- lion years, yet their continued ecological persistence seems ...
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23 What Is the Oldest Coral Reef? - American Oceans
https://www.americanoceans.org/facts/age-of-coral-reefs/
Coral reefs first appears 500 million years ago; however, at that time reefs were only made up of a singular organism. While most organisms and organism ...
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24 Questions about coral reefs
https://globalcoral.org/_oldgcra/questions_about_coral_reefs.html
Depends on how big it grows. Some corals can live up to thousands of years. · How many types of coral ...
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25 Coral Reef Introduction | EARTH 103: Earth in the Future
https://www.e-education.psu.edu/earth103/node/649
Coral reefs have existed for hundreds of millions of years and provided a habitat for some of the richest diversity on the Earth's surface.
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26 Coral reef | Description, Geochemistry, Origins, & Threats
https://www.britannica.com/science/coral-reef
Coral reefs that developed before the last glaciation were left above sea level, where they were eroded and subjected to solution weathering. As sea level rose ...
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27 What are corals? | ICRI - International Coral Reef Initiative
https://icriforum.org/about-coral-reefs/what-are-corals/
What are coral reefs? Hard corals extract abundant calcium from surrounding seawater and use this to create a hardened structure for protection and growth.
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28 Coral Reefs Biome - Untamed Science
https://untamedscience.com/biology/biomes/coral-reefs-biome/
Coral Reefs have been called the rainforests of the ocean because of ... It would be impossible to list here all the animals that live on a coral reef.
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29 Coral reefs - MarineSpecies Introduced Traits Wiki
http://www.marinespecies.org/introduced/wiki/Coral_reefs
Corals belong to the Phylum Cnidaria. The best-known type of corals is the one living in clear, warm tropical waters with plenty of colorful ...
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30 Coral Reef - The shape of the land, Forces and changes ...
http://www.scienceclarified.com/landforms/Basins-to-Dunes/Coral-Reef.html
Geologists have discovered that ancient corals existed on Earth as long ago as 400 million years. Present-day stony corals evolved over the last 25 million ...
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31 Corals and Climate - UCAR Center for Science Education
https://scied.ucar.edu/learning-zone/climate-change-impacts/corals-and-climate
Invertebrates dart around on its surface. All that busy activity and life exists in a delicate balance. But some reefs have been so hard hit by environmental ...
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32 Coral Reef - World Biomes - KDE Santa Barbara
http://kids.nceas.ucsb.edu/biomes/coralreef.html
LOCATION: Coral reefs are generally found in clear, tropical oceans. Coral reefs form in waters from the surface to about 150 feet (45 meters) deep because they ...
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33 Coral Reef - an overview | ScienceDirect Topics
https://www.sciencedirect.com/topics/earth-and-planetary-sciences/coral-reef
Coral reefs are regenerating slowly. Even short-lasting impacts may cause long-lasting damages that need decades or even centuries to recover.
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34 Coral Reefs: Status, Risks and Outlook
https://www.wri.org/insights/decoding-coral-reefs
Although the findings are based on limited data, they suggest that average live hard coral cover was reasonably stable prior to the first mass ...
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35 What is a coral reef? | Mitsubishi Corporation
https://www.mitsubishicorp.com/jp/en/csr/contribution/environment/activities01/activities01-02.html
Many of the coral reefs that can be seen in the world today have been around for over 5,000 years. There are reef throughout the world in more than 100 ...
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36 The future of coral reefs - PNAS
https://www.pnas.org/doi/10.1073/pnas.091092998
Physically large and long-lived coral species, the primary reef builders, are typically broadcasters that reproduce once or twice a year during an event ...
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37 What is a Coral Reef? - Salty Underground
https://www.saltyunderground.com/article/28-what-is-a-coral-reef
The geological record indicates that ancestors of modern coral reef ecosystems were formed at least 240 million years ago. The coral reefs existing today began ...
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38 Why coral reefs need our help - SECORE International
https://www.secore.org/site/corals/detail/why-coral-reefs-need-our-help.23.html
Corals build the reef structure and provide the basis for a functioning coral reef ecosystem. Without corals, reefs will degrade and vanish within years. At ...
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39 Coral Reefs | Resource Watch
https://resourcewatch.org/dashboards/coral-reefs
Worldwide, approximately 1 billion people live within 100 km of reefs, many of whom are likely to derive some benefits from the ecosystem services reefs provide ...
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40 The history of coral reef building - YouTube
https://www.youtube.com/watch?v=4S2mUFGb2VI
Classroom on the Reef
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41 Coral Reef - Oceana
https://oceana.org/marine-life/coral-reef/
Often nicknamed the “rainforests of the sea,” coral reefs are some of the most ... that more than a million species around the world live on coral reefs.
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42 Introduction to Coral Reefs — Deep Blue Discoveries
http://www.deepbluediscoveries.com/introduction-to-coral-reefs
Coral reefs first appeared over 400 million years ago and the coral reefs as we now know of them, today appeared less than 25 million years ago. Coral reefs are ...
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43 Coral reefs up to 250 million years ago extended much further ...
https://www.sciencedaily.com/releases/2022/06/220614122638.htm
They showed that corals in the past, from 250 to about 35 million years ago, existed much further from the equator than today, due to warmer ...
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44 Coral Reefs | UNFCCC
https://unfccc.int/blog/coral-reefs
Scientists first started noticing something was wrong in the 1980s, when the first coral bleaching events were recorded, according to Dr Helen ...
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45 What are Corals? | FWC
https://myfwc.com/research/habitat/coral/news-information/what-are-corals/
Coral-like organisms that form calcium carbonate skeletons have existed on earth for 450 million years. Coral reefs similar to the ones we know today have ...
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46 Warming Oceans Mean Extinction for Reef-Building Corals
https://www.amnh.org/explore/news-blogs/research-posts/extinction-reef-building-corals
New genomic analyses reported in the study show that corals, which together with sea anemones and other relatives make up a class of animals ...
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47 By 2100, coral reefs might completely disappear: Study
https://www.weforum.org/agenda/2020/02/coral-reefs-climate-crisis-environment-oceans
Looking at those models, the scientists found that most parts of the ocean will not sustain habitats for corals by 2045, and almost no suitable ...
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48 Science for Kids: Coral Reef Biome - Ducksters
https://www.ducksters.com/science/ecosystems/coral_reef_biome.php
At first glance, you may think that coral reefs are made up of rocks, but they are actually live organisms. These organisms are tiny little animals called ...
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49 Coral Reefs - COTF
http://www.cotf.edu/ete/modules/coralreef/CRcoralreefs.html
Although coral reefs have been around for millions of years, the reefs we see today resulted from production that occurred over the past ...
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50 Age of Coral Reefs
https://www.asa3.org/ASA/education/origins/coralreefs.htm
As such, reefs are indicators of ages on earth that are far greater than the 10,000 or so years allowed by young-earth creationists. • Tidal Slowdown, Coral ...
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51 How Long Do Corals Live? - Sciencing
https://sciencing.com/long-do-corals-live-5908177.html
While ancestors of today's coral date back 240 million years, today's reefs began growing more than 50 million years ago, although most reefs ...
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52 Climate change could kill all of Earth's coral reefs by 2100 ...
https://www.cnn.com/2020/02/20/world/coral-reefs-2100-intl-hnk-scli-scn/index.html
The 1,500 mile-long (2,300 kilometer) Great Barrier Reef is the best-known example – it has endured multiple large scale “bleaching” events ...
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53 Coral reefs - Coastal Wiki
http://www.coastalwiki.org/wiki/Coral_reefs
Corals belong to the Phylum Cnidaria. The best-known type of corals is the one living in clear, warm tropical waters with plenty of colorful ...
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54 Coral Reefs - Riegl - 2009 - Annals of the New York Academy ...
https://nyaspubs.onlinelibrary.wiley.com/doi/10.1111/j.1749-6632.2009.04493.x
Coral reefs are iconic, threatened ecosystems that have been in existence for ∼500 million years, yet their continued ecological ...
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55 Chapter 10: Coral Reefs - Mr. Van Arsdale
https://mrvanarsdale.com/marine-science/online-textbook/chapter-10-coral-reefs/
Alaskan's cold waters have many species of ahermatypic corals. Zooxanthellae algae are unicellular, yellow-brown (dinoflagellate) algae which live symbiotically ...
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56 Coral Reefs - IUCN Portal
https://portals.iucn.org/library/sites/library/files/documents/CES-001.pdf
Corals are two-layered invertebrates that live in groups (i.e. they are ... There are about 845 species of reef-building corals (Global Marine Species.
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57 June: Ancient coral reefs | News and features
https://www.bristol.ac.uk/news/2022/june/ancient-coral-reefs.html
They showed that corals in the past, from 250 to about 35 million years ago, existed much further from the equator than today, due to warmer ...
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58 Coral Reefs – Coastal Care
https://coastalcare.org/coral-reefs/
Corals first appeared in the evolution of the Earth over 500 million years ago, but it took another 100 million years or so until they became widespread and ...
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59 Coral Reef Destruction - The World Counts
https://www.theworldcounts.com/challenges/planet-earth/oceans/coral-reef-destruction
Our coral reefs are disappearingUp to half of the world's coral reefs have ... Over 25 percent of the ocean species live in coral reefs though they cover ...
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60 All About Coral & Coral Reefs - Habitat and Distribution
https://seaworld.org/animals/all-about/coral-and-coral-reefs/habitat/
Reef-building corals are scattered throughout the tropical and ... Light-absorbing adaptations enable some reef- building corals to live in dim blue light.
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61 Corals are far older than we thought - The Independent
https://www.independent.co.uk/tech/coral-age-dinosaurs-jurassic-global-warming-climate-change-a8484936.html
That's according to scientists who have discovered that we were roughly 100 million years out in our estimate of how long coral and algae had ...
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62 Almost No Coral Reefs in The World Will Be Safe at 1.5°C ...
https://www.sciencealert.com/study-warns-safe-havens-for-coral-reefs-will-be-almost-non-existent-at-1-5-c-warming
Coral reefs have long been regarded as one of the earliest and most ... Corals have adapted to live in a specific temperature range, ...
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63 Problems of studying coral-reef ecosystems
https://hmr.biomedcentral.com/track/pdf/10.1007/BF02207847.pdf
ABSTRACT: The term "reef" has still to be defined in ecological terms. ... fore, that a reef exists most likely over long geological periods.
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64 Coral Reefs: Strategies for Ecosystems on the Edge
https://www.iisd.org/articles/deep-dive/coral-reefs-strategies-ecosystems-edge
Coral species are diverse, interdependent, and ancient, first appearing 500 million years ago. Growth rings of a particular deep-sea ...
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65 Reefmakers: The Life Cycle of Coral - Scuba
https://www.scuba.com/blog/explore-the-blue/life-cycle-of-coral/
Many of the living reefs that we see today are estimated to be at least 6,000 years old, and perhaps what allows them to thrive despite ...
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66 Marine Habitats, Part III: Life In A Coral Reef Community
https://dtmag.com/thelibrary/marine-habitats-part-iii-life-coral-reef-community/
Zooxanthellae live in the tissues of coral polyps and are too small to see with the naked eye, but don't underestimate their biological importance. These algae ...
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67 Coral Reef Ecology
https://reefresilience.org/coral-reef-ecology/
The major biogeographic regions where coral reefs exist are in the Atlantic Ocean, ... Patch reefs that are discrete, isolated reefs that are often between ...
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68 Biodiversity of the Great Barrier Reef - Curious
https://www.science.org.au/curious/great-barrier-reef
It is the largest coral reef ecosystem on our planet and home to not just ... Although deep water corals do exist, the majority of reef ...
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69 Coral reefs: threats and conservation in an era of global change
https://pubmed.ncbi.nlm.nih.gov/19432648/
Coral reefs are iconic, threatened ecosystems that have been in existence for approximately 500 million years, yet their continued ecological persistence ...
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70 Reefs - Corals of the World
http://www.coralsoftheworld.org/page/reefs/
Because of the often massive accumulations of limestone, reefs provide a good fossil record from which to reconstruct their long history. Even so, the record is ...
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71 Are coral reefs victims of their own past success? - Science
https://www.science.org/doi/10.1126/sciadv.1500850
We show that although Acropora has a diverse history extended over the past 50 million years, it was not a dominant reef builder until the onset of high- ...
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72 Dive Deep Into 50 Amazing Coral Reef Facts - Facts.net
https://facts.net/coral-reef-facts/
Scientists think that the reef first began growing during the height of the last Ice Age. This would have caused the sea level in the region to ...
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73 Some 14% Of The World's Coral Reefs Were Lost ... - NPR
https://www.npr.org/2021/10/05/1043372978/global-coral-reef-loss-report-climate-change-warming-oceans
Researchers looked at levels of both algae and live hard coral cover, a scientifically based indicator of reef health. They also observed some ...
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74 Coral Bleaching - Great Barrier Reef Foundation
https://www.barrierreef.org/the-reef/threats/coral-bleaching
#What is coral bleaching? When corals are under stress, they expel the microscopic algae that live in their tissues. Without these algae, corals' tissues ...
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75 What are coral reefs? - Encounter Edu
https://encounteredu.com/cpd/subject-updates/learn-more-what-are-coral-reefs-and-why-are-they-important
Coral reefs can be found across the world's oceans in the Sub-Antarctic and tropical waters in depths of up to 3000m. These structures are created by ...
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76 6 Reasons Why Coral Reefs are Important
https://www.healthyoceanshealthypeople.org/why-coral-reefs-important/
Coral reefs have suffered because of global warming, polluted waters ... habitats in which to thrive, fish and sea life will cease to exist.
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77 Coral Reefs - Belle Isle Aquarium
http://detroitaquarium.weebly.com/coral-reefs.html
Coral reefs are built by colonies of tiny animals (polyps) found in marine waters that contain few nutrients. Most coral reefs are built from stony corals, ...
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78 Open Letter Calling for Urgent Coral Reef Action Addressed to ...
https://globalfundcoralreefs.org/news/openletter/
Coral reefs are essential to the security and climate resilience of ... Coral reefs exist in more than 100 countries and territories and, ...
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79 Coral reef - New World Encyclopedia
https://www.newworldencyclopedia.org/entry/coral_reef
The corals could then overgrow the hills, forming the present cays and reefs. Sea level on the Great Barrier Reef has not changed significantly in the last ...
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80 Scientists are studying coral reefs to better understand the ...
https://graphics.reuters.com/CLIMATE-CHANGE-CORALS/0100B33V2CC/index.html
Reef building corals largely evolved to live in the warm waters around the tropics. The clear shallow water allows sunlight to reach the algae ...
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81 Florida's Coral Reef | The Nature Conservancy
https://www.nature.org/en-us/about-us/where-we-work/united-states/florida/stories-in-florida/floridas-spectacular-coral-reef-system/
Coral restoration has grown from a single-species pilot project in 2004 to a large-scale operation aimed at restoring ecosystem balance to Florida's Coral Reef ...
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82 Coral Reefs ~ MarineBio Conservation Society
https://www.marinebio.org/creatures/coral-reefs/
The fish that grow and live on coral reefs are a significant food source for over a billion people worldwide—many of whom live far from the reefs that feed ...
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83 Coral Reef - Save the Reef
https://savethereef.org/about.html
Reefs are the foundation of ocean health and without them, marine life would cease to exist. No coral reefs, means no oxygen from the ocean. Coral reefs protect ...
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84 What lives on a coral reef - Teach Ocean Science
https://teachoceanscience.org/teaching_resources/education_modules/coral_reefs_and_climate_change/what_lives_on_a_coral_reef/
Monk seals hunt coral reef fish for food. Healthy reef fish populations means that there is more food available to them. Faisua (giant clams) live long and grow ...
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85 Why the Great Barrier Reef Could Disappear by 2050
https://www.businessinsider.com/great-barrier-reef-could-disappear-by-2050-why-2019-10
Carilli: Many corals can live for hundreds of years, so if those corals die, to get back a coral that was 400 years old and died is gonna take ...
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86 Coral Reefs - Climate at a Glance
https://climateataglance.com/climate-at-a-glance-coral-reefs/
Corals have existed continuously for the past 40 million years.1. The primary reasons for coral bleaching events, which vary significantly depending on the time ...
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87 Great Barrier Reef - UNESCO World Heritage Centre
https://whc.unesco.org/en/list/154/
The Great Barrier Reef is a site of remarkable variety and beauty on the north-east coast of Australia. It contains the world's largest collection of coral ...
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88 PAST AND PRESENT
https://www.aims.gov.au/sites/default/files/Discovering%20Scott%20Reef%20-%20Past%20and%20Present.pdf
of the Middle Miocene, a barrier reef, atolls and patch reefs existed along ... reefs were simply too far underwater for corals and other light-dependent ...
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89 Visual Feature | Status of Coral Reefs of the World - UNEP
https://www.unep.org/interactive/status-world-coral-reefs/
These vibrant ecosystems exist throughout the tropics and support more than 1 billion people through their invaluable ecosystem services. However, corals are ...
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90 Did you know: How do corals form colonies?
https://www.whoi.edu/know-your-ocean/did-you-know/how-do-corals-form-colonies/
That's because the thing that makes up most of these marine ecosystems are tiny living animals called coral polyps, which exist on the surface of reef ...
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91 Coral Reef Futures Pt 1 - PassioInventa
https://piphd.com/articles/2018/10/13/coral-reef-futures
The Great Barrier Reef is dying, but it is far from dead. Coral reefs will become less common in our lifetimes, but they probably won't die ...
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92 Coral reef facts for kids! - National Geographic Kids
https://www.natgeokids.com/uk/discover/geography/general-geography/coral-reef-facts/
– The first coral reefs formed on Earth 240 million years ago. That's before the dinosaurs were alive! – Most coral reefs today are between 5,000 and 10,000 ...
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93 The coral reefs that almost made scientists cry (for joy)
https://www.washingtonpost.com/news/morning-mix/wp/2016/03/25/the-coral-reefs-that-almost-made-scientists-cry-for-joy/
Around a few uninhabited islands in the Pacific, researchers found coral reefs that still look the way they did 1000 years ago.
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94 CORAL REEFS | EarthDay.org
https://www.earthday.org/wp-content/uploads/species/coralreefs.pdf
More than 25% of all marine life on the planet live in coral reefs across the globe, including the Atlantic, Pacific, and. Indian oceans. Just one reef has ...
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95 Coral Reef Ecosystems - Reef Relief
https://www.reefrelief.org/learn/coral-reef-ecosystem/
The ecosystem services of mangroves and seagrass are vital to the long term health of coral reefs. There is another very important element of the reef ecosystem ...
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96 Everything You Need to Know about Coral Bleaching ... - WWF
https://www.worldwildlife.org/pages/everything-you-need-to-know-about-coral-bleaching-and-how-we-can-stop-it
The zooxanthellae live within the coral in a mutually beneficial ... Coral reefs are natural barriers that absorb the force of waves and storm surges, ...
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97 Climate Close-up: Coral Reefs - NASA Earth Observatory
https://earthobservatory.nasa.gov/features/Paleoclimatology_CloseUp/paleoclimatology_closeup_2.php
First, coral reefs don't exist everywhere in the world. They can only tell scientists about climate in warm, tropical waters. Scientists have ...
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