Tetrao urophasianus, inflation of the oesophagus in the male.
Thamnobia, young of.
Thecla, sexual differences of colouring in species of.
Thecla rubi, protective colouring of.
Thecophora fovea.
Theognis, selection in mankind.
Theridion, stridulation of males of.
Theridion lineatum.
Thomisus citreus, and Thomisus floricolens, difference of colour in the
sexes of.
Thompson, J.H., on the battles of sperm-whales.
Thompson, W., on the colouring of the male char during the breeding
season; on the pugnacity of the males of Gallinula chloropus; on the
finding of new mates by magpies; on the finding of new mates by
Peregrine falcons.
Thorax, processes of, in male beetles.
Thorell, T., on the proportion of sexes in spiders.
Thornback, difference in the teeth of the two sexes of the.
Thoughts, control of.
Thrush, pairing with a blackbird; colours and nidification of the.
Thrushes, characters of young.
Thug, remorse of a.
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