His impression is that male rats outnumber females. Males are pugnacious and polygamous. Gives details of the inheritance of colour in a colony he kept.
Showing 61–71 of 71 items
His impression is that male rats outnumber females. Males are pugnacious and polygamous. Gives details of the inheritance of colour in a colony he kept.
Sends CD his book [Naturalist on the China Sea (1868)].
Sexual behaviour of chaffinches.
Numbers of female linnets in September.
His experiments on brightly coloured larvae [as food], testing A. R. Wallace’s theory.
His observations of a rookery make him wonder whether it may not be more difficult than we think for birds to pair.
Note on sexual differences in Monacanthus.
On the relative size of sexes in aculeate Hymenoptera. [See Descent 1: 347–8.]
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Reports her sister-in-law’s observations of her child, up to three months old, while crying and screaming.