They are usually used in aquariums because they feed on algae and help to keep the aquarium clean.
They live near the upper parts of streams.
Their pincers are modified. Instead of claws they have fans that allow them to catch small plant and animal matter.
These shrimp have been endangered by other species introduced into Hawaii's streams and are becoming more and more rare.
This shrimp was originally bred in Taiwan and is very adaptable.
It is popular in aquariums and feeds on algae and fish flakes.
This crustacean resembles a lobster and is covered by hair-like strands. Because of it's appearance it has been nicknamed the "Yeti Lobster" or "Yeti Crab".
It is so distinct from other species that scientists have created a new family and genus for it.
Kiwa hirsuta was found in hydrothermal vents in waters 7,540 feet deep, 900 miles sound of Easter Island in 2005.
It is white and nearly 6 inches long. It is also blind.
The family is named Kiwaida, from Kiwa, the goddess of crustaceans in Polynesian mythology.
Crocodiles grow to 7 to 15 feet in length. Similar to alligators in appearance, however its nose is thinner and its bottom teeth show when its mouth is closed.
Cassowaries are large flightless birds that live in New Guinea and Australia.
The cassowary can grow up to 5.5 feet tall making it the 3rd largest bird in the world after ostriches and emus.
Cassowaries have been voted the "world’s most dangerous bird" in the Guinness Book of Records. They have very powerful legs with long sharp claws. Cassowaries have been known to kill humans. In addition they are unpredictable. While mostly shy they can be agressive if they are threatened. Because of this they are difficult to keep in zoos.
Cassowaries are endangered.