The grizzly bear (Ursus arctos ssp.) is any North American subspecies of brown bear, including the mainland grizzly (Ursus arctos horribilis), Kodiak bear (U. a. middendorffi), peninsular grizzly (U. a. gyas), and the recently extinct California grizzly (U. a. californicus†) and Mexican grizzly bear (U. a. nelsoni†).
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Elk is the largest deer in the world. Average life span in the wild: 8 to 12 years Size: Height at the shoulder, 4 to 5 ft (1.2 to 1.5 m) include an addition 4 ft for antlers = 9ft tall. Weight: 325 to 1,100 lbs (147 to 499 kg). Bull elk lose their antlers each March, but they begin to grow them back in May in preparation for the late-summer breeding season.