...(2) The total and utterly inexcusable absence of protective measures andagencies on the part of the National Government and of the West Statesand Territories... 
William T. Hornaday 「The Extermination of the American Bison」
...Bad repeal bills must be fought untilthey are dead; and good protective bills must be supported until thebreath of life is breathed into them by the executive signature...
William T. Hornaday 「Our Vanishing Wild Life」
...We know that the variation in form and colorhas brought about the remarkable adaptations to surroundingswhich we call mimicry and protective coloration...
Clarence M. Weed 「Butterflies Worth Knowing」
...One of the most interesting phases of the study of butterfliesis to learn how often they take advantage in theirlife-history of any peculiarity of the food plant which hasa protective value...
Clarence M. Weed 「Butterflies Worth Knowing」
...The strikingangularity of the wing's border doubtless helps to concealit, and the habit of dropping motionless to the groundwhen disturbed must also have protective value...
Clarence M. Weed 「Butterflies Worth Knowing」
...Thus, speaking generally, protective coloration applies only to theupper surface, so that a white throat or under surface does notnecessarily render a bird conspicuous to its natural enemies...
John Albert Leach 「An Australian Bird Book」
...Naturally grosbeaks prefer to liveamong protective trees...
Neltje Blanchan 「Birds Every Child Should Know」
...Only the tiny hummingbird,who also uses lichen as a protective and decorative device, concealsher nest so successfully...
Neltje Blanchan 「Birds Every Child Should Know」
...A protective rind, a kind of solidified foam, envelops this core, exceptat the top, along the central line, where the porous rind is replaced bythin overlapping leaves...
J. H. Fabre Bernard Miall 「Social Life in the Insect World」
...Our fashionable theorists have availed themselves of this brown and yellow to cite the Volucella as a striking instance of protective mimicry...
J. Henri Fabre Alexander Teixeira de Mattos 「The Life of the Fly」
...It would give me amusement, did my time permit me, to counter each example of protective mimicry with a host of examples to the contrary...
J. Henri Fabre Alexander Teixeira de Mattos 「The Mason-bees」
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