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The dabbling duck group, of worldwide distribution, was delimited in a 1986 study [3] to include eight genera and some 50–60 living species. However, Salvadori's teal is almost certainly closely related to the pink-eared duck, and other genera are likewise of unresolved affiliation.
Anseriformes is an order of birds also known as waterfowl that comprises about 180 living species of birds in three families: Anhimidae (three species of screamers), Anseranatidae (the magpie goose), and Anatidae, the largest family, which includes over 170 species of waterfowl, among them the ducks, geese, and swans.
The long period of evolution and shifts from one kind of waterbird lifestyle to another have obscured many plesiomorphies, while apparent apomorphies are quite often the result of parallel evolution, for example the "non-diving duck" type displayed by such unrelated genera as Dendrocygna, Amazonetta, and Cairina. For the fossil record, see below.
The flying steamer duck is the only species to reside in landlocked bodies of water. [ 11 ] [ circular reference ] Generally, island bound/isolated avian populations are more likely to experience evolution towards flightlessness, which may be the case for several Tachyeres populations in the coastal South American regions.
The second College Football Playoff rankings produced some positives and negatives for teams. Here are the winners and losers from Tuesday's reveal:
At least one Netflix customer was disappointed enough over the company’s glitchy livestream of last Friday’s fight between Jake Paul and Mike Tyson that he’s gone to court. Ronald “Blue ...
Fulvous whistling duck Dendrocygna bicolor (Vieillot, 1816) Mexico and South America, the West Indies, the southern United States, sub-Saharan Africa and the Indian subcontinent. Size: 45–53 cm (18–21 in) long; the male weighs 748–1,050 g (26.4–37.0 oz), and the female averages marginally lighter at 712–1,000 g (25.1–35.3 oz)
Subscribe to Yahoo Fantasy Forecast on Apple Podcasts, Spotify, YouTube or wherever you listen.. Jonathon Brooks, RB, Panthers (57%) I understand you might have held him all season, so there's the ...