How cottage-country critters hibernate

Talk about laid-back parenting: In a snug hollow beneath a tree, the black bear mom dozes through the winter birth of her cubs. Granted, these newborns are very small—only 1/300th of Mama’s size. A light hibernator, she still has the instinct to tuck her almost-hairless, blind, but wakeful babies under her forearms where they can latch onto her nipples.