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  2. Anatidae - Wikipedia

    en.wikipedia.org/wiki/Anatidae

    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.

  3. Anseriformes - Wikipedia

    en.wikipedia.org/wiki/Anseriformes

    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.

  4. Mallard - Wikipedia

    en.wikipedia.org/wiki/Mallard

    The mallard (/ ˈ m æ l ɑːr d, ˈ m æ l ər d /) or wild duck (Anas platyrhynchos) is a dabbling duck that breeds throughout the temperate and subtropical Americas, Eurasia, and North Africa. It has been introduced to New Zealand , Australia , Peru , Brazil , Uruguay , Argentina , Chile , Colombia , the Falkland Islands , and South Africa .

  5. Duck - Wikipedia

    en.wikipedia.org/wiki/Duck

    A duckling is a young duck in downy plumage [1] or baby duck, [2] but in the food trade a young domestic duck which has just reached adult size and bulk and its meat is still fully tender, is sometimes labelled as a duckling. A male is called a drake and the female is called a duck, or in ornithology a hen. [3] [4] Male mallard. Wood ducks.

  6. Anatinae - Wikipedia

    en.wikipedia.org/wiki/Anatinae

    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.

  7. Government shutdown odds are rising. Economic experts aren’t ...

    www.aol.com/finance/government-shutdown-odds...

    The most expensive government shutdown in history led to about $3 billion permanently taken out of the US economy, according to the Congressional Budget Office. The reason: that 2018-2019 standoff ...

  8. Red Queen hypothesis - Wikipedia

    en.wikipedia.org/wiki/Red_Queen_hypothesis

    "Now, here, you see, it takes all the running you can do, to keep in the same place." — Lewis Carroll [4]. In 1973, Leigh Van Valen proposed the hypothesis as an "explanatory tangent" to explain the "law of extinction" known as "Van Valen's law", [1] which states that the probability of extinction does not depend on the lifetime of the species or higher-rank taxon, instead being constant ...

  9. Dogs May Be Entering A New Phase Of Evolution Due To Modern ...

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    “Service dogs fit into the life of their person in a way that many able-bodied dog owners want their pets to fit into theirs,” they added. The first wave of dog domestication began between ...