If a cat corners a gecko, the little reptile has one last trick. It twitches its tail, snaps it off, and sprints away while the still-wiggling tail distracts the hunter. Scientists call this move ...

Nature is full of surprises. A salamander can lose a leg and then, over weeks, grow it back as if nothing happened. Starfish can re-grow arms, while axolotls (a type of salamander) are known to ...