Life originated in the ocean and there are many more major groups of animals there than on land! For example echinoderms (starfish, urchins, etc.) only occur in the ocean. Despite this, there are far ...

The clip of the rockhopper mom facing off with a giant sea lion comes from National Geographic's upcoming docuseries, ...

Researchers witness strange sea animals, including poisonous sea pigs and hand-sized sea spiders, while sailing to the Denman ...

The creatures cruised the world’s oceans with features we often associate with marine mammals, such as coats of blubber and ...