A pair of critically endangered, nearly 100-year-old Galapagos tortoises at the Philadelphia Zoo have become first-time ...

The tiny joey, born the size of a jellybean, has spent the past few months growing and developing inside the mother's pouch.

The births were a "first" in the zoo's 150-year history, and Mommy, who arrived in 1932, was the oldest known first-time ...

The two oldest residents of the Philadelphia Zoo are brand new parents to four hatchlings — a major milestone for this ...

Koshka the Amur tiger was euthanized on March 26 after years of fighting a degenerative spine disease that impacted mobility.

Visitors often had the pleasure of watching Koshka patrol her yard or hearing her evening calls as she announced her ...

Riverbanks Zoo and Garden announced the death of its beloved Amur tiger, Koshka, who they said lived an extraordinary life ...

Mommy has been living at the Philadelphia Zoo for 90 years, and waited until old age to experience motherhood.

Koshka, a 19-year-old Amur, or Siberian, tiger, was euthanized this week after her health declined due to age, a news release ...

Yesterday was a sad day for fans of the Riverbanks Zoo and Garden as they said goodbye to one of their Amur Tigers who lived ...