When the temperatures start to rise as summer comes to the Sonoran Desert, any water source becomes a critical lifeline for all the desert critters. Birds, reptiles, insects, and mammals large and small regularly visit these waterholes. In this case, over the course of a month, a mountain lion stopped by only once on her rounds through her territory. The water at this spot has since dried up, so hopefully there are more water sources to be found deeper in the canyon.
My Earth 