Inch-long cricket frogs also seem to skitter over the surface of water with physics-defying grace. But when Talia Weiss, then a bioengineering graduate student at Virginia Tech, filmed the frogs ...

Amphibians are small vertebrates that need water, or a moist environment, to survive. The species in this group include frogs, toads, salamanders, and newts. All can breathe and absorb water ...