Sea sponges are bottom-dwelling, multi-cellular animals. Most sea sponges attach themselves to the ocean floor, other sea animals or rocks for the duration of their lives. A small number of sea sponges are mobile creatur...
There are seven types of sea turtles of which six are endangered. Sea turtles are some of the oldest creatures on Earth, dating back 220 million years. They can be found in all oceans of the world except for the polar re...
Sea otters are mammals that belong to the weasel family, have the densest fur of all animals and are a keystone species. As a keystone species, the sea otter is critical for the health and well-being of a great number of...
Sea sponges are animals that live on the ocean floor. After human beings harvest and dry them, the sponges serve as the household tool many people use to bathe and wash dishes and cars, among other items.
Sea cucumbers are eaten by crabs, fish, crustaceans, sea turtles and sea stars. Sea cucumbers are also eaten by people around the world, particularly those that live in Asia.
Sea slugs, snails, crabs, sea stars and some fish species, including mosshead sculpins, eels, flounders and butterflyfish, eat sea anemones. Predators with thick protective coverings, such as crustaceans, seem to be resi...
Sea urchins are eaten by birds, sea stars, cod, lobsters and foxes. Purple sea urchins are also eaten by otters in the northwest. Sea urchin eggs, also called roe, are eaten as a delicacy by people in Asia.