Part of what accelerates the threats to frog survival are the ways their homelands ... for a specific species are so powerful — no fast-food chain or McMansion will take their place.

The first species ever to be emergency-listed as an endangered species in Canada ... Bullfrogs and green frogs compete with Oregon spotted frogs for food, while fish introduced for sport fishing may ...

As colder weather sets in, the frogs then distribute extreme levels of glucose through their bodies, with it concentrating in ...

Such adaptations are essential for enduring long periods without food and in low temperatures ... and physiological adaptations in enabling frogs to survive freezing conditions.