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, ...

Scientists on an icebreaker ship have captured a number of weird and wacky animals from Antarctica's ocean floor, including a ...

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

Along some seventy plus miles of southern California coastline, usually curious and playful sea lions are attacking humans in ...

Since its discovery in 1925, only eight adult specimens have been reported, severely limiting scientists’ ability to research ...

Louisiana has become home to numerous invasive species, some of them wreaking havoc on the state's environment. Here are the ...

The Mesozoic Era extinctions formed the world as we know it today. Read about what caused them and which animals survived.

Researchers from the Schmidt Ocean Institute noticed the sea spider, the size of a dinner plate, about 2km beneath the icy surface waters of the South Sandwich Islands, a chain of volcanic islands ...

The sea mammals may actually be able to sense the amount of oxygen in their blood—something we humans can't do.