A Proceedings of the Royal Society B study of 5,600 mammals found that two species will never return to dry land.

Motherhood is entirely possible at the age 74—for some birds at least. A Laysan albatross ( Phoebastria immutabilis) named Wisdom recently became the world’s oldest known breeding wild bird.

Rising carbon dioxide levels affect more than just the climate; they also affect the chemistry of the oceans. When saltwater absorbs carbon dioxide, it becomes acidic, which alters the aquatic animal ...

One new species was kept in captivity for years while another has become a local food delicacy, researchers said.

Researchers exploring the wares of fishers in Vietnam discovered a “supergiant” sea bug species whose resemblance to Darth Vader inspired its name.

deep-sea fish adapted to high-pressure environments, where its gelatinous body thrives. The blobfish has become an unlikely celebrity of the animal kingdom for its comically droopy appearance.

Among them was a species unknown to science at the time. National University of Singapore carcinologist Peter Ng and ...

There was nothing outwardly impressive about the clam sitting on the deck of the research vessel Bjarni Saemundsson. The dull, gray creature, dredged from the muddy bottom of the North Atlantic ...