The mute swan was first formally described by the German naturalist Johann Friedrich Gmelin as Anas olor in 1789, and was transferred by Johann Matth├Ąus Bechstein to the new genus Cygnus in 1803. Both cygnus and olor mean "swan" in Latin; cygnus is a variant form of cycnus, a borrowing from Greek ╬║¤Ź╬║╬Ż╬┐¤é kyknos, a word of the same meaning.Despite its Eurasian origin, its closest relatives are the black swan of Australia and the black-necked swan of South America, not the other Northern Hemisphere swans. The species is monotypic with no living subspecies.Mute swan subfossils, 6,000 years old, have been found in post-glacial peat beds of East Anglia, Great Britain. They have been recorded from Ireland east to Portugal and Italy, and from France, 13,000 BP (Desbrosse and Mourer-Chauvire 1972ÔÇô1973).[full citation needed] The paleosubspecies Cygnus olor bergmanni, which differed only in size from the living bird, is known from fossils found in Azerbaijan.
March 2nd, 2018
Viewed 307 Times - Last Visitor from New York, NY on 10/03/2022 at 5:27 PM