And, if your dread of the small rats is not enough, what could be your reaction when you meet the top 10 biggest rat species that ever walked on the face of the planet? Usually, rats are considered pests and people use many methods of exterminating them. Giant Hutia. Genus Cricetomys (giant pouched rats) 2 species. This article was most recently revised and updated by Amy Tikkanen, Corrections Manager. These rats are nothing but giant balls of curly fur. A new species of rat, four times larger than regular rodents, has been discovered on the Solomon Islands in the Pacific Ocean. These monsters were rats … Even their whiskers are curly! Archeologists in East Timor unearthed the bones of a rat three times larger than the Bosavi specimen dating from this period. Subfamily Cricetomyinae (African pouched rats) 5 species in 3 genera. These are probably my favorite variety just because they’re so cute. Pack rats live anywhere from low, hot, dry deserts to cold, rocky slopes above timberline. East Indonesia is a “hot-spot” for rodent evolution. It can grow up to weight more than 500 grams. However, the rats evolved and mutated to much strong species. While the bodies of these rats average about 8 inches in length, far more size diversity exists in the wild, where some species of rat and rat-like rodents reach the size of raccoons. The name giant rat has been applied to various species of large rats (or animals that appear similar to large rats) and may refer to: Africa. Male rats tend to have better, healthier fur than the females, though. More than 100,000 years ago, monsters rule Anguilla’s Caribbean island. These extinct giants weighed up to 6 kilograms (13 lb). A rat is a long rodent from the superfamily Muroidea. The giant rat expedition uncovered the remains of 13 rodent species, 11 of which were unknown to science. Each species of pack rat is generally restricted to a given type of habitat within its range. Pack rats build complex houses or dens made of twigs, cactus joints, and other materials. Their fur is extremely curly throughout their body – though the belly more closely resembled that of a standard rat. Genus Beamys (long-tailed pouched rat) 1 species. Julien Louys, of The Australian National University, holds the jaw bone of a giant rat species discovered on East Timor, up against a comparison with the same, much smaller, bone of a modern rat. The Gambian pouched rat (Cricetomys gambianus), also known commonly as the African giant pouched rat, is a species of nocturnal pouched rat of the giant pouched rat genus Cricetomys, in the family Nesomyidae.The species is among the largest muroids in the world, growing up to about 0.9 metres (3 ft) long including the tail which makes up half of its total length. The prehistoric 'rat' had huge teeth, a new study says, and the animal likely competed with saber-toothed cats and giant, flightless, meat-eating birds. 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