Red Squirrel (Sciurus vulgaris). Left foreleg, showing much reduced size of first digit, top, with longer remaining four digits.

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Red Squirrel (Sciurus vulgaris). Underside of right forelimb showing digits, claws. Note vestigial, or much reduced size, of first digit or 'thumb'. Road casualty, Cumbria.

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Size: 5616px × 3744px
Photo credit: © Joe Blossom / Alamy / Afripics
License: Licensed
Model Released: No

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