Four critically-endangered Western Santa Cruz Galapagos tortoise babies made their debut at the Philadelphia Zoo on Wednesday, April 23.

It took nearly 100 years for a duo of endangered Philadelphia Zoo tortoises to become parents -- the time to name those hatchlings will be much, much shorter.

Four adorable western Santa Cruz Galápagos tortoise babies are now on display at Philadelphia Zoo after their 100-year-old 'Mommy' reproduced for the first time.

What are the 10 most colorful animals? We've done the research! Jump in to read about which are the ultimate colorful animals ...

Brookfield Zoo shaped one Illinois native’s childhood. Discover how through history, family time, and field trips.

A 14-year-old endangered creature has been welcomed by a zoo in California, officials said. On March 10, Labu, a Sumatran orangutan, arrived at the San Diego Zoo from the Fresno Chaffee Zoo as part of ...

The day after the lemur moms gave birth, Rogue was separated from her baby during a chase, officials said. Zoo staff tried reuniting her with her offspring, but she rejected the baby. Allagash ...

You can read more about why giant prehistoric animals got smaller on BBC Future ... Black holes are one of the mysteries of the universe where all the laws of nature as we know them stop working.

Imagine wandering through winding paths where the roar of a lion mingles with the trumpeting of an elephant, and the air ...

Discover how Zoo Miami shaped one Florida native’s childhood through unforgettable Zoo Camp experiences, tiger whisker ...

A 19-year-old Asian elephant at the Zurich Zoo gave birth this weekend to a male calf whose name, starting with the letter Z, will be announced this week. A light-sensitive ...

Three North American river otter pups at Zoo Miami are growing quickly and thriving under the care of their mother, Zinnia, ...