We just call it sex education.”. This female red squirrel's pups were killed by a male . Of course, I'm not denying that the genre doesn't have issues. The roles have reversed or at the very least become androgenic . A male can only make a few hundred such cells during its lifetime.
Once the eggs hatch, the males guard the young for up to two months. Pollen from males would fertilise them, rendering the bud seedy and worthless. 两只幼崽,一只雄性 和一只雌性,于9月6日出生于母亲Selasa和父亲Rabu。 Two cubs, a male and a female, were born September 6 to mother, Selasa, and father, Rabu. 雄性 大鼠(饮食,90天):无观测不良效应水平=3.85毫克/千克体重/天(对血液有影响).Male rats(dietary, 90 days): NOAEL= 3.85 mg/kg bw/day(haematological effects). 女王与几个雄性 交配,只有一次,之后每天可以产下2000个卵。 The queen mates with several males , only once, and after that they are able to lay 2000 eggs daily. The males follow the females and their activities depend on what the female is doing.因此,没有理由认为雌性或雄性 知道后代的父亲是谁,反之亦然。 So, there is no reason to think that she or the males know who the father of her offspring is, and vice versa.”. 雄性 通常非常暴力,可能会咬,吐或试图坐在其他雄性 骆驼上。Males during this time are often violent and may bite, spit, or attempt to sit on other male camels.第2代研究):F0雄性 无观测不良效应水平=0.1毫克/千克体重/天(体重增加减少,食物消耗下降). (2 generation study): F0 males NOAEL= 0.1 mg/kg bw/day(reduced bodyweight gain and food consumption). 记者了解到,这只大熊猫为雄性 ,今年已经12岁了,体重超过两百斤。 Reporters learned that this giant panda for the male , this year has been 12 years old, weighing more than two hundred pounds. 专家建议,雄性 激素疗法可以治疗性欲低下症状,但必须在医生指导下使用。 Experts suggest that male hormone therapy can treat symptoms of low libido, but must be used under the guidance of a doctor. 英国生物技术公司Oxitec改变了雄性 蚊子的DNA,以确保其后代像幼虫或va一样死亡。 A British biotech company, Oxitec, has altered the DNA of male mosquitoes to ensure that offspring die as larvae or pupae. 其他雄性 等待菌落的边缘上,有时与雌性交配的雄性 追逐他们离开之前。 Other males wait on the edges of the colony, sometimes mating with females before the alpha male chases them away. 但比较现生非洲象的头骨特征,雄性 与雌性在这两个特征上并没有差异。 However, comparing to the skull features of modern African elephants, there is no such difference in both traits in females and males . 我认识一些职业运动员,阿尔法雄性 ,还有自恋者,指责女性为自己的行为“开脱”是不公平的。 I have known a number of professional athletes, alpha males , and narcissists… it's not fair to blame women for“excusing” their behaviors. 对于雌性大鼠以及雄性 和雌性小鼠,关于观察到的癌症是否与暴露于RFR相关的证据是模棱两可的。 For female rats and male and female mice, the evidence was equivocal as to whether cancers observed were associated with exposure to RFR. 在均衡状态下,这种扩展的模拟显示许多雄性 黑猩猩离开他们的家庭群体加入另一个群体或单独游荡。 In equilibrium, this expanded simulation showed many male chimps leaving their home group to join another group or wander alone. 杰克雄性 秃鹰,发现于贝灵汉的卢米保留地,洗,有永久性损伤的次生羽毛,只有一只眼睛。 Jack, a male bald eagle, was found on the Lummi Reservation in Bellingham, Wash., with permanently damaged secondary feathers and only one eye. 遗传学家和生理学家告诉我们,产生雄性 的Y染色体是X染色体-女性染色体-破碎和变形。 Geneticists and physiologists tell us that the Y chromosome that produces males is a deformed and broken X chromosome- the female chromosome. 在交配季节,雄性 蚱蜢-小型植物喂养昆虫-小夜曲潜在的伴侣与振动的歌曲通过植物茎发送。 During the mating season, male treehoppers- small plant feeding insects- serenade potential mates with vibrational songs sent through plant stems. 在昆虫物种中,如螳螂或澳大利亚红背蜘蛛,雄性 在交配后将身体作为最后的礼物送给雌性。 In insect species such as the praying mantis or the Australian redback spider, males offer their bodies as a final gift to females after mating. 我们认为如果雌性小鼠的醛固酮比雄性 小鼠多,它们应该对盐更敏感,”BelindeChantemele说。 We thought that if the female mice have more aldosterone than the males , they should be more salt- sensitive," says Belin de Chantemele. 这些结果表明雄性 对于维持动物社会并不是必不可少的,因为它们以前曾扮演积极的社会角色,”NathanLo教授说。 These results demonstrate males are not essential for the maintenance of animal societies in which they previously played an active social role,” said Professor Lo. 斯泰尔斯和他的同事发现,大型成年雄性 河马的动作分散且不协调,这是逃避驱动迁移的特征。 Stears and his colleagues found that large subadult male hippos' movements were diffused and uncoordinated, characteristic of avoidance-driven migration. 这是一种强效的雄激素(影响雄性 生殖系统发育的激素),能导致典型的男性特征发育。 A potent androgen(a hormone that influences the development of the male reproductive system), it can lead to the development of typically male characteristics.
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