4 new wolves found on Isle Royale on Lake Superior

In late April and May, researchers in Isle Royale National Park on Lake Superior captured five wolves and attached GPS radio collars to them. Four of the captured wolves are believed to have been born on the island last year.

WOLF WEEK: Inside the wolf den

Seeing wolves in the wild is rare and difficult. Finding them at a spring den with pups, in the kind of rough terrain they prefer is even more challenging.

WOLF WEEK: From wolves to man's best friend

It is hard to imagine the wolf - which still roams the forests - as the genetic “grandfather,” so to speak, of every dog on earth today, regardless of breed. Even the smallest of our pets have wolf DNA.