Cardinal soldierfish are shy, only venturing out from their hiding spots at night. In the western Atlantic Ocean, Caribbean Sea and Gulf of Mexico, cardinal soldierfish inhabit reef colonies, rocky ...

Caribbean reef octopuses eat clams, snails, crabs, lobsters and occasionally members of the same species. Caribbean reef octopuses have white bodies with an orange and brown vein-like pattern from ...

This species of jellyfish isn't efficient at migrating on their own. They rely heavily on water currents and wind to get from one location to another. In the coastal waters of the north Atlantic, ...

According to the fossil record, deep sea isopods were thought to have existed before Pangea disbanded. This means they're over 160 million years old! Deep sea isopods eat animals, both dead and alive, ...

In the northern Pacific Ocean, GPOs live in water as deep as 4,900 feet (1,500 meters). Occasionally, they can be found in shallow tide pools. Giant Pacific octopuses, or GPOs, as they are known at ...

Commonly found on rocks from shallow water to 160 feet (48.8 meters) deep, fish-eating anemones exist in the cooler waters of the eastern Pacific Ocean. Fish-eating anemones have an orange-red base ...

Gilded triggerfish gather in small groups to eat zooplankton, shrimp, crab and other invertebrates. Gilded triggerfish differ in appearance based on their sex. Males have a bright blue spot on their ...

The arrow crab can grow to 2.4 inches (6 centimeters) in length. Arrow crabs have abnormally long spider-like legs and a pointy head. Their bodies are yellow-brown in color with white and brown ...

Every individual in this species begins as a male. As they mature, some will morph into females. Hawaiian cleaner shrimp yellow bodies with red and white striping on their topside. They also have a ...

Using its polyp tentacles, black sea rods catch and eat smaller marine organisms that drift by. They also have a special algae—called zooxanthellae– in their tissues that photosynthesize the sun's ...

Using special algae—zooxanthellae– in their tissues, angular sea rods use photosynthesis to convert the sun's rays into energy/food. In the shallow waters of the Caribbean Sea, the angular sea whips ...

This anemone secretes a toxin that can be harmful to humans. Using its polyp tentacles, mat anemones will catch and eat smaller marine organisms that drift by. They also have a special algae—called ...