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

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

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 ...

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

Riverbanks Zoo and Garden announced Thursday evening their almost 20-year-old Amur Tiger, Koshka, was euthanized after a ...

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

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

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

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 hatchlings’ parents, female Mommy and male Abrazzo, however, are likely well-known to zoo-goers. Both are estimated to be ...

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

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