the frogs were “porpoising”—leaping from the water as they swim. Weiss says their legs may be too slow for true surface hopping. “To jump on the water surface, you have to have your legs ...

It is said that if a frog is put suddenly into boiling water, it will jump out, but if the frog is put in tepid water that is then brought to a boil slowly, he will be cooked to death. Over the ...