Central and Eastern parts of Canada and the United States
The "four-eyed antelope" needs all the eyes it can get. The hirola actually has just two: it earned its nickname because of its pronounced preorbital glands. Among the most endangered antelopes on earth, it has to keep its eyes open for threats. One of its strategies for safeguarding its young is a brief "lying up" phase, where the mother leaves her calf hiding in the grass while she forages for food. This reduces the risk that much-shower calf will be targeted if a predator gives chase. But predators aren't the only problem. Habitat loss, poaching, disease and competition with livestock all jeopardize the survival of this singular specials.
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Head and body length, 120-200 cm; shoulder height, 100-125 cm; tail, 30-45 cm
Estimated at 500-1200