biologist

Similarly, every time a biologist discovers a new species, there is the opportunity to honour someone or something.

类似地，每次一位生物学家发现一个新物种，就又有了一个纪念某人或某事的机会。

One biologist developed a formula for how much genetic material would have to be to saved in the act of altruism for it to be worthwhile.

一位生物学家发展了一套公式，用来计算到底有多少遗传物质可以被保留下来的时候，利他的行为才是值得的。

In 1973, biologist Robert Trivers and mathematician Dan Willard predicted that to maximize the number of her descendents, a mother should have some control over the sex of her offspring.

1973年，生物学家罗伯特特里弗斯和数学家丹威拉德预测，为了使后代的数量最大，雌性应该有一些方法来控制其后代的性别。