The next time you declare that you are “freezing to death,” spare a thought for the wood frog who gets so cold in winter that its heart stops beating – but it does not die. Once the spring thaw ...

The wood frog (Lithobates sylvaticus or Rana sylvatica) has a broad distribution over North America, extending from the Boreal forest of Canada and Alaska to the southern Appalachians. Portrait macro© ...

As colder weather sets in, the frogs then distribute extreme levels of glucose through their bodies, with it concentrating in the heart, liver, skeletal muscles and blood. Minnesota has four types of ...

More than the return of the juncoes or the trilling of the red-winged blackbirds, the croaking of the frogs means spring. For ...

Long before winter seals the forest under ice, certain frogs begin preparing for a transformation that defies basic biology. The wood frog (Rana sylvatica), along with a few treefrog species like the ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. It looks dead for months, its body packed with ice. But ...

As temperatures climb and trees bud with the arrival of spring, a native frog species is awakening after months being frozen and nearly dead. Wood frogs are small, brownish-tan amphibians between 1.5 ...

Silent night? Not in many parts of Alabama that are home to chorus frogs. The Ornate Chorus frog has black splotches and a distinct call. Its prime breeding time is December. “It’s just a real sharp, ...

Surviving the winter was a major milestone for the species but the frogs aren’t out of the woods yet. “Reintroductions like this are notoriously challenging, and there’s no guarantee of success,” ...

One of Australia’s most endangered amphibians can fight off a deadly fungal infection with the help of a naturally heated shelter, which researchers are calling a “frog sauna”. The disease, ...