Although they have the biological potential to produce a foal every year, they seldom do so in the wild, where the struggle to find food and water restricts reproduction.

虽然在生理上，野生马每年可产下一胎，但由于在野外食物与水源难觅，牠们很少会这么做。

youdao

Legal consequences of attempts at biological control present a potential minefield.

尝试进行生物防治的法律后果是一个潜在的雷区。

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Because children born from donor sperm or eggs in the UK can now trace their biological parents when they turn 18, potential donors have been deterred, it is claimed.

由于如今的英国，捐精或捐卵人工繁育的后代在年满18岁后可以查询到自己的生物学父母，很多潜在捐精者对捐精踌躇不前。

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That fund would leave hospitals better prepared for potential biological and chemical attacks, provide money to hire more Coast Guard and customs workers, and secure ports, bridges and tunnels, Clark said.

CNN: Clark outlines economic incentive plan

Too many today chase the American myth of unlimited potential by denying biological limitations, including performance enhancing drugs in sports, searching for self-esteem with cosmetic surgery, or pushing the frontiers of reproductive medicine.

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He did posit that some form of biological monitoring would be built into a potential Valve game controller (biometrics).

ENGADGET