Closely-related to reptiles, the amphibian class includes frogs, toads, salamanders, and newts.  Contrary to their reptile kin, amphibians tend to have slimy skin and favor cooler areas, generally away from direct sunlight.  Amphibians can be found on every continent of the world, aside from Antarctica.  The biodiversity is, by far, the heaviest in tropical rainforests, such as the Amazon.  Some amphibian species have, however, evolved to become extremely cold-tolerant.  The American Wood Frog, for example, can endure up the 70% of it’s body freezing for months at a time, continuing to survive in a torpor-like (the equivalent of hibernation for many species) state as long as it’s heart remains unfrozen (rather poetic, don’t you think?).  This album contains a nice balance of macro and action shots, as well as pretty creatures just doing their thing.