Coloured scanning electron micrograph (SEM) Cow (cattle) hair (Bos sp.). The cow hair shaft is made up of overlapping scales of dead cells containing the protein keratin. Cows, commonly referred to as cattle, are domesticated ungulates of the subfamily Bovinae. They are raised as livestock for meat (beef and veal), dairy products (milk), leather and as draft animals. Magnification: x100 when shortest axis printed at 25 millimetres.
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