Koala and Curlew, two endangered female North Atlantic right whales have gone off course, perplexing researchers.

Sadly, koalas are listed as an endangered species in large parts of Australia ... some of it peeling off in long ribbons to reveal a smooth, white skin underneath. With the sunlight dappling ...

Valentina Mella, zoology researcher at the University of Sydney, studies a koala colony in New South Wales. From her observatory, she told what endangers the species and what we can do to make a ...