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Tadpole

From Biocrawler, the free encyclopedia.

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Ten-day-old tadpoles

Embryos (and one tadpole) of the wrinkled frog (Rana rugosa)

A tadpole (also known as a pollywog) is a larval frog, toad, salamander, or newt. In this stage it breathes by means of external or internal gills, is at first lacking legs, and has a finlike tail. As a tadpole matures, it metamorphoses by gradually growing limbs and then (in the case of frogs and toads) absorbing its tail. Most tadpoles are herbivorous, subsisting on algae. In a few species, some tadpoles turn cannibalistic under harsh conditions and feed on other tadpoles living in the pond.

"Tadpole" is a 2002 film directed by Gary Winick about a boy who falls in love with an older woman.
In physics, a tadpole is a Feynman diagram with one external leg, and it encodes a one-point function (correlation function of one field). The name is due to Sidney Coleman.
In the US Navy, a pollywog is a sailor who has not yet crossed the equator while on a ship.
Some scuba diving clubs have an entry class called Tadpoles for younger children who want to start scuba diving.lt:Buožgalvis