A transparent goby fish drifted through the darkness, its skeleton visible through paper-thin skin. Nearby, a sea slug wore ...

A bumpy snailfish, Andean mouse opossum and ancient sea cow were just some of the many species described in 2025.

Their ability to walk on land grants the species greater mobility. Officials sound alarm as hairy sea creature spreads across ...

Keystone species play an outsized role in the ecosystem, affecting the natural balance in ways that cannot easily be replaced.

A four-foot escaped lizard, a newborn baby giraffe, feline politicians and a cloned dog were some of the animal stars of 2025 ...

Meet animals that grow for a lifetime, sometimes for centuries, and discover why dinosaurs did not, despite their huge size.

Deep-sea creatures are some of the most skilled survivalists in the world. They endure isolation, extreme temperatures, and ...

A place in Wisconsinu drops cheese; Arizona has a pinecone; and Pennsylvania towns drop a Lebanon bologna and a Peep, among ...

Most of us think of long lifespans and immediately picture giant tortoises or ancient oak trees. But the animal world is full of unexpected creatures that live far longer than you’d ever guess.

From Santa’s reindeer and the Hanukkah armadillo to some very festive sea worms, our changing world is changing life for ...

From Santa’s reindeer and the Hanukkah armadillo to some very festive sea worms, our changing world is changing life for creatures great and small.