Word: excrements
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Dates: during 1887-1887
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...uncommon among butterflies. There is a species which is noxious in taste to birds; their form is mimicked in color by a second form, and this one is again mimicked by a third species. Other forms of mimicry are in the resemblance of certain caterpillars to the excrement of birds; the rolling of leaves by caterpillars so as to resemble buds; the coloration of undersides of the wing to look like bark, stones...