Yeah, and some frogs can change genders

Sit down.

Trust us, you need to be sitting for this. We know you’re usually sitting down when you’re on your computer, but we had to make sure. It sounds good, and besides, you may be reading this on your phone.

Sitting now? OK, good.

Salamanders can re-grow legs. That’s shocking enough, but now science wants to do the same thing to us. Let me just say right now that I enjoy living my live dry almost all the time. I enjoy breathing oxygen and I like having teeth, too. I have no urge to be a salamander.