Determining fossil gender is a challenge, but the presence of the egg is strong evidence this individual was a mature female.

通常确定化石的性别是一个挑战，但龙蛋成了确定此化石标本为一成年雌性的强有力的证据。

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We, of course, know that with time, culture and socialisation do play a role in determining a male brain or female brain.

当然，我们知道假以时日，文化和社会化确实在决定男性大脑或女性大脑方面起一定的作用。

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So, Saturday morning, a team of scientists and veterinarians artificially inseminated the Smithsonian National Zoo's female giant panda Mei Xiang, after determining that she and her male consort Tian Tian had "no competent breeding" overnight, according to a statement from the National Zoo.

CNN: Giant panda gets artificially inseminated