Male koalas have learned to belt out louder bellows much bigger than an animal of their size. IF YOU’RE A KOALA, hot for some action and want to prove you’re top gum, you’d better start bluffing, ...

Caitlin O'Kane is a New York City journalist who works on the CBS News social media team as a senior manager of content and production. She writes about a variety of topics and produces "The Uplift," ...