Cassowaries are giant birds native to Australia, New Guinea, and Indonesia. They are striking-looking birds, almost dinosaur-like with razor-sharp claws on their feet and helmet-like structures called ...

With shrinking habitats across Africa and rewilding efforts gaining steam, conservationists are seriously exploring whether the U.S. could become a new home for cheetahs reviving a prehistoric ...

Members of a flashmob wear Emoji-masks as they demonstrate in front of EU headquarters in Brussels on Tuesday, Aug. 30, 2016.