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Flipper (anatomy)
A
flipper
is a typically flat
forelimb
evolved for movement through water. Various creatures have evolved flippers, for example
penguins
(also called "
wings
"),
cetaceans
(e.g.
dolphins
and
whales
; usually called "
fins
"),
pinnipeds
, and
reptiles
such as some varieties of
turtle
and the now-extinct
plesiosaurs
,
mosasaurs
,
ichthyosaurs
, and
metriorhynchids
.
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