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Coral reefs are endangered due to rising global temperatures, pollution and overfishing. It is estimated that about 1/5 of all coral reefs on the planet have been destroyed. The remaining ones could potentially vanish by 2050.


Coral is a colorless marine animal that lives on the ocean floor and can be red, orange and other colors. Any color that appears to be present on coral is a buildup of algae that live on the coral. Like other animals of the sea, coral can change color with emotion.


Coral is not a plant but an animal. Corals are often mistakenly thought to be plants because they are sessile, which refers to their behavior of attaching themselves to the bottom of the ocean.


Most corals feed on phytoplankton, which are plants and algae that flow through the water. Invertebrate larvae, decomposing organic matter and floating plankton are also common food sources. Bacteria from dead plant matter, mucus and other various sources is eaten by co...


There are literally millions of animals that live in coral reefs and that live around the reefs, but a few specific species of animals that live in coral reefs are corals, clams, sponges, sea horses and certain types of fish. Sea turtles, lobsters and other species like...


Corals move about as free-living creatures during their larval phase, only settling down into a semi-stationary lifestyle when they mature. Because the adults are largely immobile, corals have evolved with a number of adaptations to overcome this limitation. Coral moves...


Coral is formed by small animals called coral polyps, which are related to sea anemones and jellyfish. Coral polyps extract calcium from seawater and then convert that calcium into limestone shelters, which eventually become the coral seen in bodies of water.