Joel Sartore's latest book, "National Geographic Photo Ark: Babies," captures the animal kingdom's most curious youngsters. Sumatran tigersPanthera tigris sumatrae (CR). Tiger families are close-knit.

Sumatran tigers are among the rarest cats on the planet and have been classified as critically endangered by the ...

ATLANTA — Zoo Atlanta announced a new addition on Thursday: Buttercup, a 2-year-old female Sumatran tiger. Zoo officials said Buttercup arrived on the evening of April 16 from the Wildlife ...

Mara, a 15-year-old Amur tiger at the Columbus Zoo, was euthanized due to age-related decline. She was known for her spirited personality and made history by birthing the zoo's first tiger cubs in ...

National Zoo Lovers Day, celebrated every April 8th, gives us a chance to celebrate the animals (and the people) that make zoos so special. Zoos offer more than just educational programs and ...

Mara, an Amur tiger and a 15-year resident of the Columbus Zoo and Aquarium who made history by birthing the zoo's first litter of tiger cubs in more than a quarter-century, has been euthanized ...

WASHINGTON, D.C. -- Ahead of Earth Day, National Geographic announced the ourHOME sweepstakes, part of the brand's Earth Month celebration. Open to anyone in the U.S over 18 years old, one lucky ...

POWELL, Ohio — The Columbus Zoo and Aquarium is mourning the death of one of its beloved Amur tigers. Mara, an 18-year-old tiger, had lived at the Columbus Zoo since 2010 after being born at the ...

Humans have used geckos in the pursuit of skin cancer treatments. So it seems fitting that when a gecko at the National Zoo was spotted with tumors, humans went all in to save the little fella.