anas platyrhynchos การใช้

• This flies, waddles, swims, and quacks like Anas platyrhynchos.
• This species was formerly and sometimes still is considered a subspecies of the mallard, as " Anas platyrhynchos diazi " ( AOU 1983 ).
• The large ice age palaeosubspecies which made up at least the European and west Asian populations during the Pleistocene has been named " Anas platyrhynchos palaeoboschas ".
• Most domestic ducks in North America are of the White Pekin variety, which were developed from the wild Mallard duck ( Anas platyrhynchos ) by the Chinese.
• Almost all varieties of domesticated duck are descended from the mallard ( " Anas platyrhynchos " ), apart from the Muscovy duck ( " Cairina moschata " ).
• It is widely agreed that the mallard ( " Anas platyrhynchos " ) is the ancestor of all breeds of domestic duck ( with the exception of the Muscovy duck ( " Cairina moschata " ), which is not closely related to other ducks ).
• In the late 1800s, the mallard, also known as " Anas platyrhynchos ", were flown in to stock up the ponds of Hawaii for ornamental purposes, but soon enough they were massively imported throughout the 1950s and the 1960s ( U . S . Fish and Wildlife Service 2005 ).
• Grasping and / or grappling mating situations have also been documented in " Calopteryx haemorrhoidalis haemorrhoidalis " ( Odonata ), fallow deer ( " Dama dama " ), mallard ( " Anas platyrhynchos " ), hamadryas baboons and many other primates, coho salmon ( " Oncorhynchus kisutch " ), and others.
• The two white-fronted goose species differ little other than in size ( the lesser, at length and with a wingspan, is not much bigger than a mallard ( " Anas platyrhynchos " ) but both may be readily distinguished from the greylag goose by their bright orange legs and their mouse-coloured upper wing-coverts.
• Myxospores are extremely tough : " it was shown that " Myxobolus cerebralis " spores can tolerate freezing at  " 20癈 for at least 3 months, aging in mud at 13癈 for at least 5 months, and passage through the guts of northern pike " Esox lucius " or mallards " Anas platyrhynchos " without loss of infectivity " to worms.