Some packs of wolves are packing up and heading to a new home. Once they arrive, they’ll be devouring all the moose they could ever want to eat.
U.S. officials just decided to send new gray wolves to Isle Royale in Michigan. Gray wolves there are about to die out. Just two remain: a male and a female. But those two closely-related wolves aren’t likely to breed. That’s a big problem—and not just for the wolves. Too few wolves means too many moose. Too many moose will overeat the Isle Royale trees and shrubs. Eventually, the moose could eat themselves—and other creatures—right out of a food supply.
