Erotism   (translated from French)
... with the biological direction of the term, reproduction. Crowned, sexuality is at the same time ... me. The sexual instinct, related to the reproduction, exceeds the horizon of the instinct of ... alternation of the sexual indifference and the rut. It is in this space of indetermination ... Simone de Beauvoir noted indeed that the mammalian male is detached from the female at ...
http://fr.wikipedia.org/wiki/Érotisme - 17k - Cached (French) - Wikipedia (French) - Similar pages

Estrus cycle
... are induced by reproductive hormones in most mammalian placental females (humans and great apes are ... 1890 it was first used to describe "rut in animals, heat". Estrus, also œstrus (BE ... stimulation in long-day breeders and stimulate reproduction in short-day breeders. Melatonin is thought ...
http://en.wikipedia.org/wiki/Estrus_cycle - 14k - Cached - Similar pages