Aquatic Animals - Facts for Kids

Basic Information

Sea urchins belong to the scientific class Echinoidea, which comes from the Greek word “echinos” meaning “spiny” or “hedgehog”!

Great White Sharks are called “apex predators” because they’re at the top of the ocean food chain!

A blue whale’s throat is only about 4–8 inches (10 to 20 centimeters) in diameter, so it can’t swallow anything bigger than a beach ball!

Most nudibranchs live only a few weeks to about a year in the wild, which means every day of their bright, colorful lives is an adventure!

Diet & Feeding

Each cone snail type eats different prey — some eat only worms, others only fish, and some only other snails!