The blue crane once rebounded through conservation—but now it's in sharp decline again. Experts warn the next 15 years are critical.

Photograph by Donald McLeish, National Geographic ANIMALS Cat Day: Nat Geo’s archival pictures of felines Any day is a good day to celebrate cats.

For years, industry critics have argued that South Africa’s captive lions are inbred—but a new study shows that may not be the case.

Hint: it's a species that hails from Africa, where its name derives from.