They find human food through their noses.

它们通过鼻子找到人类的食物。

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Not surprisingly, the rats that gorged themselves on the human food quickly became obese.

毫不意外地，那些大量进食人类食物的老鼠迅速长得过度肥胖。

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Rules issued in 2004 prohibited specified risk materials from use in the human food supply.

2004年发布的规定禁止了明确的危险材料用作人类食品供应的用途。

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In the early days of human history, people survived by hunting wild animals, or gathering wild grains and plants for food.

VOA: special.2010.01.31

This Cambridge History of Food talks about three separate primary phases in human food evolution: one beginning a million and a half years ago, another about 700,000 years ago, and then the 10,000 year ago one that I talked about just a moment ago.

剑桥饮食史》描述了,人类饮食结构演化过程中的三个不同阶段,其一,始于一百五十万年前,其二,距今约七十万年,其三,距今一万年,我们刚讨论过了

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

If the food environment had evolved very slowly, as it had in earlier human history, the body would have a chance to adapt.

如果食品环境演化很缓慢,像它在人类早期历史时那样,机体就有机会去适应这样的食品环境

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Now, beyond table scraps, store-bought dog food is nearly impossible to distinguish from human food.

NPR: U.S. Obesity Epidemic Hits Pets, Too

The biggest hazard of atmospheric tests was that radioactive fallout would get into the human food chain.

CNN: ASIANOW - Asiaweek

Or what if the transgenic animals somehow got into the human food chain?

ECONOMIST: REPORTS