Animals That Turn White in Winter Face a Climate Challenge
About 20,000 years ago, somewhere along the crease where the Cascade Mountains drop into the plains, black-tailed jackrabbits and snowshoe hares mated. But as snowshoe hares, with their unique ability to seasonally change from brown to white, bounded away, they took with them a black-tailed jackrabbit gene, one that would serve them well millennia later: … Read more