The Down Under rat (Downunder or DU) is a

fancy rat The fancy rat (''Rattus norvegicus domestica'') is the domesticated form of ''Rattus norvegicus'', the brown rat, and the most common species of rat kept as a pet. The name ''fancy rat'' derives from the use of the noun '' fancy'' for a hobby, ...

variety noted for the markings on its stomach. The "downunder" marking refers to both a patch of colour on the underside of the rat which matches the coat colouring on the top, and to the variety's

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

n origins. While most varieties either have a white pattern on their undersides, or they are completely one colour, the Down Under stands out for its coloured ventral markings against a white background. These markings may be symmetrical or asymmetrical shapes, stripes, or spots. Additionally, because other markings are traditionally found on other parts of the body, Downunders are able to be crossed with those markings to produce varieties like a DU blaze—a rat with a white stripe on its nose. The genes for creating a Downunder rat are dominant, needing only one parent to produce the marking. Due to Australia's strict importation laws, rats are prohibited from being intentionally brought into the country. This has forced the rat fancy hobby to develop

varieties Variety may refer to: Arts and entertainment Entertainment formats * Variety (radio) * Variety show, in theater and television Films * ''Variety'' (1925 film), a German silent film directed by Ewald Andre Dupont * ''Variety'' (1935 film), ...

in parallel to those found abroad. The Down Under is the first variety to originate in Australia. It was first noted in a litter of hairless rats bred by Cindy Cairns Sautchuk of 'The Rodent Ranch' in

New South Wales ) , nickname = , image_map = New South Wales in Australia.svg , map_caption = Location of New South Wales in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , es ...

. The first breeding Down Under was a furred male named Enigma. It is sometimes thought that the Down Under variety came from breeders in

Brisbane Brisbane ( ) is the capital and most populous city of the states and territories of Australia, Australian state of Queensland, and the list of cities in Australia by population, third-most populous city in Australia and Oceania, with a populati ...

, the bRatpack and RatmanDU ratteries. However, these breeders are actually just credited with shipping the first Downunders overseas.

References

{{Reflist Rats as pets