McCallum Grove is part of the Coachella Valley Preserve. It has a spring which provides water year-round to this desert environment.

Little fish (pupfish?) that live in the pond, and are an endangered species because they are only found in a few habitats.
Here is almost the exact same shot taken on December 31st, 2010. The grass is a lot higher now after the winter and spring rains.

You can just see the bright blue and yellow on his belly. And that's not his tongue, I think he has a bit of red leaf or something stuck near his mouth.