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In the mouse, offspring born from mature fathers exhibit better behavioural performances (for spontaneous activity in both sex and learning capacity in males) than those born from post-pubescent fathers. These behavioural variations are not accompanied by other obvious modifications. They could correspond to what has been observed in man relating to the results in a psychometric test undergone by male progeny born from very young to mature fathers. These data and those which show a decrease in mental performance in rats and human males born from mature to senescent fathers suggest the participation of some genetic factors in these phenomena.
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Auroux et al. (1998) studied this question.
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