Australia’s giant Protemnodon kangaroos didn’t die out everywhere at the same time. Instead, extinction proceeded one habitat ...

At 50 years old, L’Heureux’s energy and enthusiasm for his work are as high as ever. He credits the fast-paced nature of the ...

Early last year, keepers at Chester Zoo first spotted that 25-year-old Rico, a two-toed sloth, had swellings on the side of ...