The one with the most venom, the greatest diver, or the one with blue blood... you decide which sea creature is the greatest of them all!

Which sea creature is the greatest? Is it the one with the most venom, the greatest diver, the one with blue blood, or the best rotating eyes? Or is it the master of disguise, the one with the best light, or the most eggs? Fascinating facts and spectacular illustrations will inspire young readers to choose their own favourite sea creatures!