A new decade-long study tracked 37 penguin colonies and found that the birds are breeding earlier. The shift marks one way ...

Hidden under rocks and coral lives a sea creature that feels almost magical. It has soft arms, clever eyes, and not one or ...

The Texas coastline is seeing a rare and unusual sight: thousands of mysterious sea creatures washing ashore after what ...

"She had been in the lab and recognized how to identify fishes, and said that's something valuable that we have to preserve.” ...

One of Earth’s earliest mass extinctions wiped out most ocean life during a sudden global ice age. From the ruins, jawed vertebrates survived, diversified, and transformed the course of evolution.

Researchers have discovered a new species in the Great Salt Lake, offering scientists a new tool for monitoring environmental ...

Scientists from the California Academy of Sciences described 72 new species last year, from elegant birds to strange sea ...

For most mammals, growing up means giving up their mother’s milk. Then there are the sea lions of the Galápagos Islands.

A diver in Monterey Bay recently had a close encounter with a deep-sea fish normally found at depths of 3,000 feet, NOAA ...

Some animals do not have red blood like humans. From spiders to octopuses, their copper-rich blue blood helps them survive ...

This article originally published at 'Mass die off': Thousands of rare sea creatures wash up on Texas coast.

Exceptionally preserved fossils from the Ediacaran period challenge what scientists thought was possible in sandstone. In the fossil record, creatures without hard shells or skeletons, such as ...