http://thrasymedes.livejournal.com/ ([identity profile] thrasymedes.livejournal.com) wrote in [personal profile] macroevolution 2013-10-11 08:42 pm (UTC)

Может быть, бабушки больше любят сыновей, а сыновья больше любят дочерей ( соответственно, внучек ). И транзитивно получается примерно то, что нужно
(38 comments)

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