adult wolverine | 6.6-16.2 kg | carcasses left by wolves and bears | April to September | wolf or grizzly bear | | 865-1070 mm | | | | wolves, porcupines, humans | stout, muscular body | northern Canada as far north as Ellesmere Island | grass and leaves | roots, berries, mice, ground squirrels, birds' eggs, baby birds, fish, beavers, porcupines, moose, caribou, mountain goats, carrion | | carcajou | fallen tree, upturned root, rocky crevice, low tree bough |  | in the day and at night | glossy dark brown with two pale buff stripes on the shoulders and flanks | pugnacious, curious, bold and strong | wolverine | bark, growl, hiss | boreal forests, tundra, alpine tundra | Gulo gulo | | Order Carnivora | | | Family Mustelidae |
adult female wolverine | 6.6-14.8 kg | carcasses left by wolves and bears | April to September | wolf or grizzly bear | 7-8 months | 865-932 mm | when she is 2 years old | babies | intruders to her nest when her babies are young | wolves, porcupines, humans | | northern Canada as far north as Ellesmere Island | grass and leaves | roots, berries, mice, ground squirrels, birds' eggs, baby birds, fish, beavers, porcupines, moose, caribou, mountain goats, carrion | March and April | carcajou | fallen tree, upturned root, rocky crevice, low tree bough |  | in the day and at night | glossy dark brown with two pale buff stripes on the shoulders and flanks | pugnacious, curious, bold and strong | female mammal | bark, growl, hiss | boreal forests, tundra, alpine tundra | Gulo gulo | her babies' tummies after feeding to aid digestion | Order Carnivora | live babies | one breeding period per year | Family Mustelidae |