gregarious animal

基本解释

As we go back, we find more and more in men the traits of gregarious animals;
当我们回顾时，我们发现越来越多的人们中间如群居动物般的部落；
The gregarious animals are also vulnerable to human diseases, such as tuberculosis, cholera and measles, Yang said.
杨说，这些群居的动物同样容易受到人类的一些疾病的攻击，比如说肺结核，霍乱以及麻疹。
blog.sina.com.cn
As Karl Schwenke points out in his classic book In a Pig's Eye: 'Pigs are gregarious animals. Like children, they thrive on affection, enjoy toys, have a short attention span, and are easily bored.'
如卡尔什未文克在他的经典书《猪的眼睛》写的：“猪是群居动物，喜欢小孩，他们感情丰富，喜欢玩具，注意力较短，并且很容易对事情失去兴趣。”