I was crouched by the pond today, musing that I had yet to see a turtle in it, when something drifted into view:
Oh! I was thrilled! I was -- wait ... it's ... dead? I watched it hang in the water for a long time without moving as I wondered whether our pond is actually as healthy as I'd hoped. Finally the little turtle stretched out its wee legs and lazily turned over.
Whew! I found a second one nearby doing the same kind of thing. I'm guessing this is a form of camouflage: maybe if it looks enough like a floating leaf, it can escape being eaten. The great blue heron was also at the pond, hoping for a tasty turtle snack. I could only find two baby turtles, but I'm assuming there were many more to begin with and some have fallen victim to herons and other dangers.
This one put on a mad burst of speed: