Get acquainted with an array of ocean oddballs and learn how billions of years' worth of changes, from ice ages to asteroid strikes, have shaped their looks and skills. Meet blind worms who fish, walking sharks, tree-climbing crabs, and much more.

Sometimes a strange yet heartwarming relationship can develop between the most peculiar beings on Earth. Immersed in the deep, we find strange animals from the pistol shrimp to the wolf shrine, and many animals help other ocean creatures survive.