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A wolverine's front feet have long, strong claws that help it climb trees. Common Name: Wolverine. Wolverine fur is typically a thick, glossy dark brown. A white hair patch on the neck and chest is often present in some individuals while not occurring in others. White hair on the toes, feet and forelegs is not uncommon. Wolverine communicate through vocalizations and scent-marking. Scent-marking, or chemical communication is accomplished with urine and abdominal rubbing.
Although wolverine has well developed anal musk glands, musking appears to be used primarily as a fear-defense mechanism. The most common example of this occurs with the skunks which also is a member of the same family as the wolverine Mustelidae. In Canada, the wolverine is present in boreal forests form east to west, and as far north as Ellesmere Island. Presently, the wolverine is extremely rare in Quebec and Ontario, and there are no recent records from Labrador.
In Manitoba and Saskatchewan, numbers appear to have declined, the southern limits have receded to the north, and wolverine are now confined to the northern portions of the provinces. In Alberta, the species once occurred in all coniferous forests of the province, but now is found only in remote areas in the north and in the Rocky Mountains.
Wolverine occur throughout mainland British Columbia, except for the southern agricultural areas, and throughout the Yukon Territory and mainland Northwest Territories. They occur continuously in mainland Alaska but only on some of the southeastern islands. In Eurasia, the wolverine is found from Scandinavia eastward through eastern Europe, Siberia, and Asia.
Most animals are concentrated in the mountain chain of northern Norway and Sweden, and along the south-central Norwegian mountains. In Sweden, wolverines are restricted to remote areas in the northwest. The numbers appear to be increasing however. Wolverines are also found in the tundra and forest zones of eastern Europe, Russia, and northern Asia. In western Siberia, wolverines are widely distributed in the tundra and taiga, and are relatively common in extreme eastern Russia.
Wolverine generally become reproductively active from April to August. Wolverine pairs may remain together for several days during the mating period. Wolverines use a reproductive strategy called delayed implantation.
Once the egg of the female is fertilized, it will grow to a multi-cell stage called a blastocyst which is about the size of the head of a pin. The egg then stops growing and remains in this state for 6 to 8 months until it is ready to implant in the uterine wall.
This happens sometime from November to January. From that point, it takes the egg or embryo days to complete the gestation period.
The young are then born sometime from January through April, with most females giving birth before late March. Litter size averages Baby wolverines are called kits or cubs. They are born fully furred with their eyes closed and teeth not yet erupted. At birth their fur is all white, they weigh an average of
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