Webbing

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Webbed toes of a blue-footed booby ( Sula nebouxii )

Many pond rails have swimming flaps instead of webbed feet.

A swimming skin is the skin between the toes or fingers floating animals is formed. Webbed animals are z. B. Seals , beavers , ducks or amphibians .

function

The webbing increases the efficiency of swimming movements by enlarging the area of ​​the feet or hands that are moved , thus enabling better muscle power transfer to the water .

Webbed skins are elastic, so that the area of ​​the moving limbs can be reduced again when moving against the swimming direction in order to achieve the lowest possible water resistance.

"Webbing" in humans

A relatively common congenital malformation in humans is the adhesion or non-separation of fingers and / or toes ( syndactyly ). The unusual connection between the limbs can be the result of a skin overgrowth or a bony connection. In the case of skin adhesions, the connecting piece of skin resembles a web of webbing.