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antenna	An antenna is a long, thin thing that sticks out from the head of insects and some kinds of sea animals. Each insect or sea animal has two of them. Butterflies, beetles, grasshoppers, crabs, and lobsters are some animals that have antennas. Animals with antennas use them to feel and to smell. Antennas help them find things like food and also each other! [1/2 definitions]
barnacle	A barnacle is a small sea animal that lives in water close to the shore. Like crabs and lobsters, barnacles grow a shell around their bodies. When a barnacle is an adult, it attaches its shell to rocks, the bottom of boats, or other hard surfaces.
coral	Coral is something that is often found at the bottom of the sea in places where the water is warm and not very deep. Coral looks like a growing plant and is found in different colors and shapes. Coral is not a plant, though. Coral is actually very hard, and it is made up of the skeletons of very tiny sea animals. Sometimes coral builds up so much that it rises toward the surface of the water. When coral makes a large structure like this, the structure is called a reef.
crab¹	Crab is a kind of food. It comes from the sea animal called a crab. It is the part of a crab that people can eat. [1/2 definitions]
Gulf of Mexico	The Gulf of Mexico is the part of the Atlantic Ocean that touches the east coast of Mexico and the south coast of the United States. The Gulf of Mexico is home to many fish, sea animals, and birds. You can find whales, sharks, dolphins, sea turtles, shrimp, and many other creatures in the Gulf of Mexico.
lobster	Lobster is a kind of food. It comes from the sea animal called a lobster. It is the soft part of a lobster that people can eat. [1/2 definitions]
octopus	An octopus is an animal that lives in the sea. It has a soft body and eight long "arms." These arms help the octopus move through the water and catch food. Octopuses eat crabs, lobsters, and other small sea animals.
reef¹	A reef is something in the ocean made out of rock, sand, or coral. A reef is a structure that rises from the bottom of the sea and reaches close to the surface of the water. A reef can damage a boat if the boat hits against the reef in the water. Reefs are important, though. They support the life of many fish and other sea animals.
sea anemone	A sea anemone is a small animal of the sea that looks very much like a flower. Sea anemones attach themselves to rocks or other things in the water, and they catch and eat small fish and other sea animals.
sea animal	A sea animal is any animal that lives in an ocean. There are many kinds of sea animals, including fish, shrimp, lobsters, dolphins, and whales.
seafood	Seafood is any sea animal that people eat for food. Some kinds of seafood are shrimp, lobster, and crab.
seahorse	A seahorse is a small fish that looks something like a horse, and it swims with its head pointing up and its tail pointing down. Seahorses live in warm parts of the ocean. They eat small sea animals, like very tiny shrimp.
sea lion	A sea lion is a mammal that spends most of its life in the ocean. A sea lion has a smooth body and a face with round eyes and whiskers around its small nose. Sea lions look similar to another sea animal called a seal, but they are not the same animal. Sea lions have a large, strong tail and large front flippers that are bigger than the flippers that seals have. Sea lions' tails and their long flippers allow them to sit up. Humans sometimes train sea lions to do tricks.
shark¹	A shark is a fish that lives in the ocean. Sharks have large mouths and many large teeth. They are good at hunting, and they can swim very fast. Sharks eat fish and other sea animals. Most kinds of sharks are not dangerous to people at all, but a few kinds of sharks will attack humans too, if there is no other food or if the humans scare them!
shrimp	Shrimp is a kind of food. It comes from the sea animal called a shrimp. It is the part of the animal that people can eat. [1/2 definitions]
sponge	A sponge is a sea animal that has a body with many holes that water can flow through. Its body is often shaped like a fat tube. There are many different types of sponges. Sponges can live in either warm water or in cold water. [1/3 definitions]
starfish	A starfish is a sea animal. It has a flat body and arms that give it the shape of a star. Starfish live in water near the seashore or in places where the water of the ocean is not deep. Starfish are not really fish because they don't breathe the same way as fish. Starfish are also called sea stars.

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