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The groundhog (Marmota monax), also known as the woodchuck, is a rodent of the family Sciuridae, belonging to the group of large ground squirrels known as marmots. [2] A lowland creature of North America, it is found through much of the Eastern United States , across Canada and into Alaska . [ 3 ]
Muskrat skeleton Muskrat skull An adult muskrat is about 40–70 cm (16–28 in) long, half of that length being the tail, and weighs 0.6–2 kg ( 1 + 1 ⁄ 4 – 4 + 1 ⁄ 2 lb). [ 13 ] That is about four times the weight of the brown rat ( Rattus norvegicus ), though an adult muskrat is only slightly longer.
A mosaic can have two different colored eyes if the DNA difference happens to be in an eye-color gene. There are many other possible reasons for having two different-colored eyes. For example, the film actor Lee Van Cleef was born with one blue eye and one green eye, a trait that reportedly was common in his family, suggesting that it was a ...
Offspring are born naked and helpless and must be cared for in nests called middens. Some female pack rats have been known to deliver up to five litters per year with each litter having as many as five young. The offspring may open their eyes between 10 and 12 days after being born and are usually weaned between 14 and 42 days.
Groundhog, woodchuck, or whistle pig Canada and east of the Mississippi in northern USA Marmota sibirica: Tarbagan marmot, Mongolian marmot, or tarvaga: Siberia Petromarmota: Marmota caligata: Hoary marmot: northwestern North America (Alaska, Yukon, British Columbia, Alberta, Washington, Montana) Marmota flaviventris: Yellow-bellied marmot
The arthropods ancestrally possessed compound eyes, but the type and origin of this eye varies between groups, and some taxa have secondarily developed simple eyes. The organ's development through the lineage can be estimated by comparing groups that branched early, such as the velvet worm and horseshoe crab to the advanced eye condition found ...
The footage is shocking. A brown bear — and there hasn't been one of those in Southern California for more than a century — breaks into a 2010 Rolls Royce Ghost, seemingly using the door handle.
The pelage of a newborn round-tailed muskrat varies from gray to ash-gray. Adults have a brown pelage with pale fur on the belly. This change in coat color is the result of a juvenile molt (between 7 and 30 days post partum) and a subadult molt (between 35 and 50 days post partum). Molting in round-tailed muskrats has been observed throughout ...