它们滞留在住房条件差、安全用水和卫生设施稀缺、环境肮脏以及带病昆虫和动物大量繁衍的地方。
They stay put in areas where housing is substandard, safe water and sanitation are scarce, environments are filthy, and disease-carrying insects and animals are abundant.
就像生活在没有树木的热带草原，你发现水果不够了，动物稀缺。
It's like living on the savannah and discovering you don't have enough fruit and the animals are scarce.
当食物稀缺并需要动物消耗体力去捕食时，增加对非偏好品的渴望能帮助动物吃下他们所获得的食物，即使尝着味道真的不怎么样。
When food is scarce and animals exert energy to retrieve food, increasing the desirability of less tasty food would help animals eat what they had caught, regardless of its inherent tastiness.
如果在自由放牧的农场产品和有机食品稀缺的地区，就更值得关心你所点的菜来自哪里了——如果餐厅意识到游客需要从被善待的动物身上产出的食物，他们以后就会去采购。
While free range organic food may be hard to come by in some areas, it is worth checking – if restaurants recognise a demand for cruelty-free food they may stock it in future.
当食物稀缺的时候，愿意远行去寻找食物来填报肚子的勇敢的动物就拥有比较明显的进化优势。
When food was scarce, brave animals willing to travel to fill their bellies would have had an obvious evolutionary advantage.
纽卡斯尔大学的本·威格·汉姆也参加了这个项目。他说：“我们对这些动物在稀缺食物的深海地区如何找到食物很感兴趣。”
Ben Wigham of Newcastle University, which is also taking part in the project, said: "We are interested in how these animals are feeding in areas of the deep-sea where food is often scarce."
纽卡斯尔大学的本·威格·汉姆也参加了这个项目。他说：“我们对这些动物在稀缺食物的深海地区如何找到食物很感兴趣。”
Ben Wigham of Newcastle University, which is also taking part in the project, said: "We are interested in how these animals are feeding in areas of the deep-sea where food is often scarce."
应用推荐