history of rats?
History and folklore relating to rats. ... The domestic Brown rat is most often called a "Fancy Rat". The Rats raised for pets today descend from the "Brown Rat", Rattus norvegicus , that only colonized Europe in the 16th Century. - read more
Evolutionary history. True rodents are widely considered to have originated in Asia. Rodents first appear in the fossil record at the end of the Paleocene and earliest Eocene in Asia and North America, about 54 million years ago (Meng et al. 1994). - read more
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