Category:Concealing-coloration in the animal kingdom (1909)
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Media in category "Concealing-coloration in the animal kingdom (1909)"
The following 23 files are in this category, out of 23 total.
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Thayer Concealing-Coloration Plate XII - Luna Caterpillar a) in position b) inverted.jpg 1,244 × 1,896; 875 KB
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White fowl lacking countershading.jpg 1,447 × 1,652; 565 KB