Meet the smartest dog breed in the world—and see if your dog's breed is among the top 63 Chris Wallace Quits CNN to Build ...

Discover 10 incredible extinct creatures that once ruled Earthfrom the massive Megalodon to the mighty Woolly Mammothand ...

While you may not want to encounter one on a hike, there's no denying that snakes are magnificent creatures — no matter how ...

We move between the Titanoboa – a terrifying 15-meter snake that would have gobbled you up if you had lived 60 million years ago – the Baluchitherium – the most massive of land mammals ...