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The Snow Mountains grassland mosaic-tailed rat (Melomys frigicola), also known as the Snow Mountains grassland melomys, is a species of rodent in the family Muridae.It is endemic to the mountainous west part of the island of New Guinea, where its range extends from Lake Habbema to the Baliem Valley, in Papua Province, Indonesia.
Based on the historical records, it appears that extremely cold winters can cause a dramatic decline in populations. In 1912 and 1918, severe winters reduced the Illinois eastern woodrat populations. In 1948 and 1949, long winters with accumulation of snow and ice might have caused high mortality of litters in Kansas and starvation of adults. [24]
Its adult length is 11 to 18 in (28 to 46 cm), half of which is its tail. Its weight is 1.3 lb (590 g). The bushy-tailed woodrat is the largest and most cold-tolerant species of woodrat.
The mating system in this species appears to be variable, with promiscuity most generally at high population densities and monogamy at lower densities. [ 3 ] They are similar in appearance to the common rat species Rattus rattus and Rattus norvegicus , but with larger ears and eyes, softer coats, and furred tails.
American millennials aren’t the only ones trying to escape the rat race. In China, young people are heading to “youth retirement villages,” whether for a weekend, a few weeks or much longer.
The winding track was just big enough for one person and long enough to walk for an hour. One of the best things was that it was rather unknown, so most weekends I had the wilderness all to myself ...
The similar species Rattus norvegicus, the brown rat or wharf rat, has also been carried worldwide by ships in recent centuries. [ 61 ] The ship or wharf rat has contributed to the extinction of many species of wildlife, including birds, small mammals, reptiles, invertebrates, and plants, especially on islands.
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.