What do these birds do that increases the fish population?

Why do snakes have forked tongues?

What trait does this baby turtle have in common with softshelled turtles?

How well do alligators see? (And yes, that is my reflection it its eye.)

I photographed this snake at Ginny Springs. I was using the Micro lens on my Nikon D90 at the time, so I was only about 4 inches from the snake when I took this shot. How much danger was I in?