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.Know More
An individual coral is known as a polyp. Polyps attach themselves to rock along the ocean floor and multiply to form a colony. Each polyp has a hard, protective skeleton at the base that creates a reef when colonies are formed.
Coral are very sensitive to environmental changes such as a change in temperature or pollution. A completely white coral, also referred to as "bleached out," indicates that the animal is stressed. Stressed coral will not allow algae to remain on its surface, placing itself and the rest of the reef it may be attached to in danger.Learn More
Beluga whales live near the top of the food chain in the Arctic ocean. Belugas, also called white whales because of their white skin, eat small species of fish and crustaceans, such as salmon, smelt, herring, Arctic and polar cod, shrimp, crabs, mollusks and marine worms. Belugas, in turn, are preyed upon by killer whales, polar bears and humans.Full Answer >
Bivalves are mollusks that show no cephalization, according to Clinton Community College. The biological makeup of mollusks does not include a head, central nervous system and sensory organs that are needed for cephalization in higher animals, notes Estrella Mountain Community College.Full Answer >
Brine shrimp eat green algae by filtering water through their legs. Members of the order Anostraca, brine shrimp are small crustaceans that live in brine pools and other inland waters featuring high salinity.Full Answer >
A starfish eats by wrapping its arms around a bivalve's shell, prying it open, injecting its stomach into the shell and then digesting the prey. After digesting, it slides the stomach back into its body. This allows the starfish to eat food that cannot fit through its tiny mouth.Full Answer >