Feathers are mostly made of keratin, the protein that is also found in hair, claws, and reptile scales. A central shaft branches into many slender barbs, each with dozens of smaller barbules that interlock to form a strong, light, and flexible surface. Feathers insulate the bird as well as providing it with the ability to fly. Mag: x400.
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Details
Creative#:
TOP22222297
Source:
達志影像
Authorization Type:
RM
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須由TPG 完整授權
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N/A
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No
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No
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