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Feather, SEM

Feather, SEM

P740/0062

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Credit

MANFRED KAGE / SCIENCE PHOTO LIBRARY MANFRED KAGE / SCIENCE PHOTO LIBRARY

Caption

Feather. Coloured scanning electron micrograph (SEM) of barbules (blue) making up the structure of a feather. The flat broad vane of a feather is formed by comb-like rows of filaments called barbs, which project from either side of a central shaft (rachis, green, across upper right). Each barb has rows of minute filaments called barbules. The barbules on one side bear hooks, while those on the other have a groove. The arrangement is such as to hook adjacent barbs together, linking the whole structure. This makes the feather strong yet flexible and light, which is ideal for flight. Magnification unknown.

Release details

Model release not required. Property release not required.

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