Imagine waking up to find your entire body gone — no torso, no limbs — just a head that has expanded, split into five distinct sections. That sounds like a horror film or a scene from science ...

Look at a starfish in a tidal pool and you may think: Ah, there’s one of those pretty, multi-armed sea worms that crawl around and don’t do much. But look deeper and your views might change. Hundreds ...

Check this out—starfish? They're basically heads that can crawl! Oh, and speaking of cool animal facts, ever heard howler monkeys? They're so loud, you can hear them from three miles away! And get ...