The muskrat, a stocky brown rodent the size of a Chihuahua - with a tail like a mouse, teeth like a beaver and an exceptional ability to bounce back from rapid die-offs - has lived for thousands of ...

Downstream of hydroelectric dams and Alberta's oil sands, one of the world's largest freshwater deltas is drying out. New research suggests long-term drying is making it harder for muskrats to recover ...