Small Frogs

At the nature preserve there is a little pond. In the pond there live lots of little frogs. Some are black and some are black with yellow stripes on their backs, and some are black with red stripes on their backs. Once I saw a black frog with a green stripe on its back, but that was the only one I saw with a green stripe. Also, once I saw a frog that was entirely green and yellow. I tried to catch him to show my brother, but he got away. I can catch them. Sometimes they get away, and sometimes I catch them. But I always let them go when I go home.