Lake Superior’s northern shore has been home to woodland caribou for thousands of years. But now, the species is facing local extinction. Some blame climate change for the caribou's decline. But the species has persisted through an ice age, and through warming temperatures. It’s survived climate change before. So why is it in trouble now?
Rails are secretive marsh birds, and they’re on the decline. But a researcher playing their recorded calls over a loudspeaker could help bring them back – by tricking them.
Lyme disease is increasing in the Upper Midwest. The illness is caused by a bite from an infected black-legged tick. But the disease can be hard to spot. If left untreated, it can spread to other parts of the body and cause arthritis and nervous system problems.