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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 ...
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.
Diagram of a human eye; note that not all eyes have the same anatomy as a human eye. The mammalian eye can also be divided into two main segments: the anterior segment and the posterior segment. [10] The human eye is not a plain sphere but is like two spheres combined, a smaller, more sharply curved one and a larger lesser curved sphere.
Brown bear size, most often measured in body mass, is highly variable and is correlated to extent of food access. Therefore, bears whose range in areas with access to openings, cover, and moisture or water are on average larger, whereas those bears that range into enclosed forested areas or arid, sparsely vegetated regions, both of which tend to be suboptimal foraging habitat for brown bears ...
Eye color is determined by a few different genetic factors, the most important being OCA2. OCA2 produced melanocytes, or melanin producing cells. Melanin is the protein that creates skin, eye and ...
The weight varies depending on habitat and the time of the year. A full-grown male weighs on average between 350 and 500 kg and reaches a maximum weight of 650 kg and length of nearly 2.5 m (8.2 ft). Females typically range between 150 and 300 kg and reach a maximum weight of 450 kg . [5] They have a lifespan of 20 to 30 years in the wild. [6]
An eye chart is a chart used to measure visual acuity comprising lines of optotypes in ranges of sizes. Optotypes are the letters or symbols shown on an eye chart. [ 1 ] Eye charts are often used by health care professionals, such as optometrists , physicians and nurses , to screen persons for vision impairment .