The Columbus Zoo’s trailblazing gorilla, the first in the world to be born in captivity, became a matriarch and presided over ...

In a rare moment, a two-toed sloth gave birth in front of visitors at a zoo in Minnesota. Sago, a Hoffman two-toed sloth, ...

National Geographic's upcoming docuseries, 'Secrets of the Penguins,' captured a shocking encounter between a mother rockhopper penguin and giant, hungry sea lion, and PEOPLE has a first look at the f ...

Macaque mothers experience a short period of physical restlessness after the death of an infant, but do not show typical human signs of grief, such as lethargy and appetite loss, finds a new study by ...

A Twin Cities zoo had to euthanize one of its gorillas this week, despite a yearslong effort to treat the ape's deteriorating ...

There's nothing more touching to see than a new mom bonding with her newborn. Whether it's an adult or animal, mom instincts ...

Blackpool Zoo has issued an update after the first baby gorilla to be born at the zoo arrived in India to start a major new adventure with her half-sister.