公鸡母鸡也交配吗?Yes, they have sex (the rooster injects his sperms into the hen). 还是只要在一个院子里能感受到互相的雌性激素或雄性激素就行?No. 鸡蛋是受精卵什么?Eggs may be fertilized and maybe not. 所有的蛋都是受精卵吗?No.
u r right. Sexual stimuli exist in many animals, and for most mammals, the responses are obvious. Dolphins are special in that they shall fuck only for fun. Oh, yeah, masturbation and 69 in animal behavior usually indicate higher intelligence.
【在 n****n 的大作中提到】 : 公鸡母鸡也交配吗?Yes, they have sex (the rooster injects his sperms into : the hen). : 还是只要在一个院子里能感受到互相的雌性激素或雄性激素就行?No. : 鸡蛋是受精卵什么?Eggs may be fertilized and maybe not. : 所有的蛋都是受精卵吗?No.
【在 m***y 的大作中提到】 : u r right. Sexual stimuli exist in many animals, and for most mammals, the : responses are obvious. : Dolphins are special in that they shall fuck only for fun. Oh, yeah, : masturbation and 69 in animal behavior usually indicate higher intelligence.