Receive emails about upcoming NOVA programs and related content, as well as featured reporting about current events through a science lens. Jon Costanzo: This small, handsome frog is Rana sylvatica, ...

Scientists have uncovered a superior method of freezing and thawing frog sperm leading to improved sperm quality. Driven by mass declines of frogs worldwide, research into cryopreservation of ...

Add Yahoo as a preferred source to see more of our stories on Google. A brown wood frog sits among dried oak leaves and melting snow, its golden eyes reflecting the light.© A-Z Animals The post The ...

With the winter cold, animals living outside are forced to adjust. Many smaller critters burrow into snow to keep warm, and some frogs willingly... From Frozen Frogs To Insect Antifreeze, How Animals ...

Why is there an alligator lying completely frozen under the ice… and still alive? At first glance, it looks like something ...

(This video is no longer available for streaming.) Wood frogs freeze solid in winter then thaw back to life and mate in the spring. How do they do it? Scientists have now figured out how to recreate ...

These frogs inside an incubator at Mt. St. Joseph University are in a kind of frozen state. Cryoprotectants are key and researchers are trying to translate the concept into human organs. Under a leafy ...

Each winter in parts of North America, certain frogs endure conditions that would be fatal to most vertebrates. As temperatures drop below freezing, ice forms inside their bodies, their hearts stop ...

Wood frogs are highly dependent on environmental conditions to determine whether they are active. After fattening up during the summer, wood frogs enter brumation in the fall as temperatures cool.