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Fluctuations in the lemming population affect the behaviour of predators, and may fuel irruptions of birds of prey such as snowy owls to areas further south. [8] For many years, the population of lemmings was believed to change with the population cycle , but now some evidence suggests their predators' populations, particularly those of the ...
The tundra wolf (Canis lupus albus), also known as the Turukhan wolf, [3] is a subspecies of grey wolf native to Eurasia's tundra and forest-tundra zones from Finland to the Kamchatka Peninsula. [3] It was first described in 1792 by Robert Kerr , who described it as living around the Yenisei , and of having a highly valued pelt.
The tail remains completely white all year round, distinguishing the mountain hare from the European hare (Lepus europaeus), which has a black upper side to the tail. [9] The subspecies Lepus timidus hibernicus (the Irish mountain hare) is smaller in size and stays brown all year.
Herbivory is of extreme ecological importance and prevalence among insects.Perhaps one third (or 500,000) of all described species are herbivores. [4] Herbivorous insects are by far the most important animal pollinators, and constitute significant prey items for predatory animals, as well as acting as major parasites and predators of plants; parasitic species often induce the formation of galls.
The Alaskan tundra wolf (Canis lupus tundrarum), also known as the barren-ground wolf, [3] is a North American subspecies of gray wolf native to the barren grounds of the Arctic coastal tundra region.
The snowy owl (Bubo scandiacus), [4] also known as the polar owl, the white owl and the Arctic owl, [5] is a large, white owl of the true owl family. [6] Snowy owls are native to the Arctic regions of both North America and the Palearctic, breeding mostly on the tundra. [2]
The researchers compared the genomes of six species of apes, including humans, and 15 species of monkeys with tails to pinpoint key differences between the groups. Our ancient animal ancestors had ...
A pika (/ ˈ p aɪ k ə / PY-kə, [3] or / ˈ p iː k ə / PEE-kə) [4] is a small, mountain-dwelling mammal native to Asia and North America. With short limbs, a very round body, an even coat of fur, and no external tail, they resemble their close relative, the rabbit, but with short, rounded ears. [5]