Editing Winter white dwarf hamster (section)

==In the wild==
[[File:Pallas PS by Tardier grey.jpg|thumb|100px|left|[[Peter Simon Pallas]] named the hamster in 1773 as ''Mouse sungorus''.]]
In the wild, the hamster's fur changes colour in the winter. This adaptation helps them to evade predators in the snow-covered [[steppe]]s.<ref name="aboutpets book" /> The hamster digs tunnels one metre deep leading to ground burrows where they can sleep, raise their young and hide from predators.<ref name="How2care" /> The [[weasel]] is one of the hamster's main predators.<ref name="KS1964:R1998:GC" /> Most of these burrows have six entrances. In the summer, the burrows are lined with moss. To keep the burrow warm in the winter, the hamster closes all but one entrance and lines the burrows with animal fur or [[wool]] that it finds. The temperature inside the burrow is usually {{convert|16.7|°C|F}}.<ref name="aboutpets book" /> The hamsters sometimes live in the [[semidesert]]s in Central [[Asia]].<ref name="J1979:R1998:E">Boris Stepanovich Yudin, Lijana Ivanova Galkina, Antonina Fedorovna Potapkina 1979 Quoted in Ross 1998 (p. 5, "Ecology ").</ref> They also live in the dry steppes and wheat or [[alfalfa]] fields, as well as on small fields in the forests of the region around [[Minusinsk]].<ref>M. N. Meier 1967 Peculiarities of the reproduction and development of''‘‘Phodopus’’ sungorus Pallas''of different geographic populations] Volume 46 Russian Cited In: Ross 1998 (p. 5, "Ecology"). The figures refer to the area of Minusinsk.</ref> The fur on the hamster's feet protect the feet from the cold ground in the cold climates in the wild.<ref name="aboutpets book" /> The [[population density]] is highly varied.<ref name="J1979:R1998:E" /> In 1968, the first four examples of the hamster were caught in Western Siberia and brought to the [[Max Planck Institute]] in [[Germany]].<ref name="How2care" />