Four rare Western Santa Cruz Galalapos tortoise hatchlings will go on public view at Philadelphia Zoo starting April 23.

Animals and humans have always coexisted. Before cities, nomadic hunter-gatherers depended on animals for food, transport, ...

A Santa Cruz Galapagos tortoise named Mommy gave birth to four babies, believed to be female, at Philadelphia Zoo ...

The world’s oldest modified mammoth ivory pieces may have been used by children to mimic the tools of their parents, or ...

Mommy, who's been at the Fairmount Park attraction since 1932, and her mate Abrazzo welcomed four hatchlings earlier this ...

A boulder with incisions that may date back hundreds of thousands of years has sparked huge interest in the scientific ...

As soon as Colossal Biosciences declared that it brought the dire wolf back from extinction, everyone felt a sense of wonder.

COLORADO SPRINGS — The Cheyenne Mountain Zoo is remembering the life of Roxie, a 48-year-old female Western lowland gorilla.

The tools, found in an area where an ancient rainforest once stood, push back the oldest known evidence of humans in similar ...

Four critically endangered Western Santa Cruz Galapagos Tortoises hatched earlier this month, the first time in the zoo’s ...

Roxie, the zoo's longest-living resident, was the third oldest female Western lowland gorilla in human care in the U.S. before she died, according to the zoo. She was humanely euthanized on Tuesday ...