Wolves Have Been Caring for the Pack for at Least 1.3 Million Years
Wolves today live and hunt in packs, which helps them take down large prey. But when did this group behavior evolve? An international research team has reported specimens of an ancestral wolf, Canis chihliensis, from the Ice Age of north China (~1.3 million years ago), with debilitating injuries to its jaws and a leg. The ...
