Imagine waking up to find your entire body gone — no torso, no limbs — just a head that has expanded, split into five ...

If you’re able, watch this video. If not, allow me to explain. Two crown-of-thorns starfish are placed in separate tanks.

For many creatures, having a limb caught in a predator’s mouth is usually a death sentence. Not starfish, though—they can detach the limb and leave the predator something to chew on while they crawl ...