A cougar in Connecticut

Scientists piece together the wanderings of a young male cat

The tale starts with an unidentified body found on the roadside. Hit by a car in the wee hours of the morning, investigators puzzled over where it had come from and how it had reached its asphalt resting place.

Cougars can wander far and wide. A young male killed in Connecticut — where no wild populations have lived for more than a century — arrived in the state after a nearly 2,000-mile journey that began in the Black Hills of South Dakota.