duck wiki:
>For other uses, see Duck (disambiguation). Dendrocygninae Oxyurinae Anatinae Merginae Duck is the common name for a number of species in the Anatidae bird family. The ducks are divided between several different subfamilies listed in full in the Anatidae article. Ducks are mostly aquatic birds, mostly smaller than their relatives the swans and geese, and may be found in both fresh and salt water.
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family wiki:
>This article is about the human domestic group. For other uses, see Family (disambiguation). A family is a domestic group of people, or a number of domestic groups, typically affiliated by birth or marriage, or by comparable legal relationships including domestic partnership, adoption, surname and in some cases ownership (as was the case in the Roman Empire).
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