Tree frogs can be very small, but very loud. How can they tolerate making such loud sounds?

Where was this photo taken?

Why does this lizard have two tails?

OK, this is a tricky one. In which state was this photo taken, and how do you know?

I photographed these young Barred Owls in a park in Jacksonville, Florida. They nest nearby, and I was hoping to find some owl pellets. What is an owl pellet?