Coloured SEM of barbules on a swallow feather

Numéro d’image : 11876643
Coloured SEM of barbules on a swallow feather
Feather barbules. Coloured scanning electron micrograph (SEM) of barbule hooks on a feather from a swallow,(Hirundo sp.). 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. 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,interlinking the whole structure. Thus the feather is strong yet flexible and light,making it ideal for flight. Magnification: x844 at 5x7cm size. Magnification: x2,050 at 7x5 inch size
Licence : Droits gérés
Crédit: Science Photo Library / Power And Syred
Taille de l’image : 3664 px × 2480 px
Model Release : Non requis
Property Release : Non requis
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