A polar bear mom emerged from her den with one cub, but was later seen in Churchill, Manitoba, with two. Researchers say she likely adopted an abandoned cub, only the 13th case observed in 45 years.

The Oklahoma City Zoo announced the addition to its animal family following the birth of a critically endangered Sumatran ...

In a rarely documented case, a female polar bear was spotted with two cubs, including one that wasn’t her own, in the ...

The Oklahoma City Zoo and Botanical Garden announced the birth of an endangered Sumatran tiger cub in its Cat Forest habitat.

The rare event marks the 13th known instance of adoption within this well-studied group of polar bears living in the western ...

The Detroit Zoo this week announced the birth of three lion cubs to first-time mom Amirah, a 9-year-old African lioness housed at the zoo. "She has been wonderfully calm, attentive and nurturing, ...

The Oklahoma City Zoo announces the birth of a Sumatran tiger cub, highlighting conservation efforts for the critically endangered species and the zoo’s ongoing breeding program.

In Argentina an unusual love story has had a happy ending after two rare jaguar cubs were born to a wild jaguar father and a mother who has lived all her life in captivity.

Female Bonita, 16, and her 11-year-old son Remi, moved into Chester Zoo after being transported from a safari park in Cumbria.

A team of Canadian researchers have documented a rare care of a female polar bear adopting an unrelated cub who was ...

The Oklahoma City Zoo welcomed a critically endangered Sumatran tiger cub, offering a rare boost for a species with fewer than 400 left.