More aggressive animals, such as tigers and bears, use teeth and nails to attack other creatures or defend their territory.

更为凶猛的动物，比如老虎和熊，就会用它们的牙齿和指甲攻击其它的生灵或者捍卫它们的领域。

youdao

More aggressive animals , such as tigers and bears , use teeth and nails to attack other creatures or defend their territory .

更多好斗的动物，诸如老虎和熊是用牙齿和爪子去攻击其它动物或者保卫它们的领土。

youdao

The apes are more aggressive and more obviously animals than in the original film; they still frequently move on all fours and emit fierce shrieks whenever angry or excited.

电影中的人猿比原版中的更像我们印象中的那种生物，他们更具攻击性也更野性难驯，他们仍用四肢行走，生气或兴奋时就会发出我们在动物园听到的猩猩的那种嚎叫。

youdao

The upshot is that the programme of culling that the government embarked on was probably more aggressive than it needed to be, and that a system of quick detection and isolation of unwell animals might have been sufficient to keep the disease in check.

ECONOMIST: Foot-and-mouth disease