You are watching: What makes caribou different from the herbivores of warmer climates
Large loved ones of the deer, caribous are iconic the Alaska and also Canada"s far north and also are the same varieties as the reindeer the Scandinavia, Greenland and also Russia. Each year in phibìc America, huge herds consist of of 50,000 come 500,000 moment-g.coment-g.com travel numerous miles in between spring calving grounds on the tundra to wintering grounds in boreal forests. Woman caribous, unlike mrs deer, have actually antlers, though they"re not as massive as the males". Similarly, bull caribous, which deserve to weigh as tiny as 275 pounds and much more than 600 pounds, space much bigger than cows, which median 200 come 300 pounds.
The musk ox resembles a bison however is much more closely related to goats. It it s okay its surname from the strong, musky odor emitted through males to lure mates. That coat is composed of a shaggy outer layer and a downy winter undercoat burned in blanket-size chunks every spring. Dubbed qiviut, this fur is accumulated by people who monitor the herds. Warmer and also more finely textured than wool, yarn do from qiviut is comparable to cashmere; it have the right to be knitted or woven in the exact same way. Top top average, musk oxen range from 6 feet to 7.5 feet long, measure 4 to 5 feet in ~ the shoulder and weigh 400 come 900 pounds.
In winter, the Arctic hare"s thick fur is practically blindingly white, offering excellent camouflage versus the ice and snow spanning the tundra, Its black color eyelashes act like sunglasses come shield the animal"s eyes from glare. Since it doesn"t hibernate, the roly-poly body form and fairly short ears assist it maintain heat. Top top average, this hare weighs 6.5 pounds come 11 pounds. V its long hind legs and snowshoelike back feet, the Arctic hare have the right to clear up to 7 feet in a single bound and run at speeds of 40 miles per hour -- without sinking right into the snow. The indigenous human being of the phibìc hunt the Arctic hare because that its meat and also fur.
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Pity the bad lemming, the tundra"s smallest mammal and also a favourite snack for nearly every predator in the Arctic. Since this mouselike rodent weighing 2 ounces come 4 ounces is component of the clip diet the so countless moment-g.coment-g.com, transforms in populace can have serious repercussions. For unknown reasons, in four-year-cycles, lemming number fluctuate wildly between extremes, peaking to vast overpopulation before crashing to semi-extinction levels. The story that lemmings commit self-destruction en masse by running off cliffs isn"t true; but in top years, castle are regularly seen in swarms ~ above land and also sea ice. Your colors vary throughout summer. In winter, their coats revolve white, and also they live in burrows under the snow.