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Tragops dispar, sexual difference in the colour of. Training, effect of, on the mental difference between the sexes of man. Transfer of male characters to female birds. Transmission, equal, of ornamental characters, to both sexes in mammals. Traps, avoidance of, by animals; use of. Treachery, to comrades, avoidance of, by savages. Tremex columbae. Tribes, extinct; extinction of.
In the Tragops dispar of the same country the male is bright green, and the female bronze-coloured. Dr. The colours of certain species are very different in the adult and young states. Dr. As the males of most animals search for the females, these odoriferous glands probably serve to excite or charm the female, rather than to guide her to the spot where the male may be found.
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