Coatis and
Arctic wolves in
Germany.
Coatis are members of the raccoon family (Procyonidae). They are diurnal mammals native to
South America,
Central America, and south-western
North America. The term is reported to be derived from the
Tupi language (
Brazil).
Adult coatis measure 33 to 69 cm (13 to 27 in) from head to the base of the tail, which can be as long as their bodies. Coatis are about 30 cm (12 in) tall at the shoulder, and weigh between 2 and 8 kg (4.4 and 17.6 lb), about the size of a large house cat.
Males can become almost twice as large as females and have large, sharp canine teeth. The above measurements are for the white-nosed and South America coatis. The two mountain coatis are smaller.
The Arctic wolf (
Canis lupus arctos), also known as the
Melville Island wolf is a possible subspecies of gray wolf native to the
Canadian Arctic Archipelago, from Melville Island to
Ellesmere Island. It is a medium-sized subspecies, distinguished from the northwestern wolf by its smaller size, its whiter coloration, its narrower braincase, and larger carnassials. Since
1930, there has been a progressive reduction in size in
Arctic wolf skulls, which is likely the result of wolf-dog hybridization.
Contrary to its mainland counterparts, the Arctic wolf has never been seriously hunted or pursued, as the high Arctic holds few human settlements. As a result, the Arctic wolf is relatively unafraid of people, and can be coaxed to approach people in some areas. It has occasionally acted aggressively toward humans.
Otto Sverdrup wrote that during the
Fram expedition, a pair of wolves attacked one of his team-mates, who defended himself with a skiing pole. In
1977, a pair of scientists were approached by six wolves on Ellesmere Island, with one animal leaping at one of the scientists and grazing a cheek. A number of incidents involving aggressive wolves have occurred in
Alert, Nunavut, where the wolves have lived in close proximity to the local weather station for decades and become habituated to humans.
The Arctic wolf was first described as a distinct subspecies by
British zoologist
Reginald Pocock in 1935, after having examined a single skull from Melville Island.
As of 2005, the Arctic wolf is still recognized as a distinct subspecies by
MSW3. However, studies undertaken on Arctic wolf autosomal microsatellite
DNA and mtDNA data indicate that the Arctic wolf has no unique haplotypes, thus indicating that its colonization of the
Arctic Archipelago from the
North American mainland was relatively recent, and thus not sufficient to warrant subspecies status.
Source :
Wikipedia
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- published: 21 Aug 2014
- views: 293