Grain farmers replaced working animals with combines and planters, which demanded different homes, usually wide metal sheds.

种植谷物的农民舍弃了役畜，取而代之的是联合收割机和播种机，它们需要的是不一样的家——通常是宽敞的金属棚。

youdao

It was a travelling show of animals and people working under a large tent, later known as the Big Top.

VOA: special.2009.01.11

Humans banded together instead of working more as individuals and started hunting animals in groups, groups of animals hunted by groups of humans.

人类开始聚集在一起,而非单独行动,人类开始集体狩猎,集体狩猎帮助人类捕获大量的动物

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

The group has helped connect young people who are interested in working to save animals and the environment.

VOA: special.2009.11.18

Grain farmers replaced working animals with combines and planters, which demanded different homes, usually wide metal sheds.

ECONOMIST: The battle to save a vanishing American icon

The Riding Part: Sheri teaches herd dynamics, communicating with horses, horses as working animals, horses (and us) as sensate beings in a sensate world, horse heartbeats, grooming and tacking up.

FORBES: Connect

Researchers working with animals don't have to worry about getting enough eggs.

FORBES: Cloning's High Cost