英语听力精选进阶版 13825

（单词翻译）

A dog's life

Vocabulary

barren

land which does not have plants growing on it

landscapes

visible areas of land

big prey

large animals that are hunted by others

herd

group of animals that live together

skulls

bone cases for protecting the brain

species

group or type of animal or plant

evolved

developed gradually over time

descend

come from

overpowering

defeating through greater strength

genes

part of a cell which contains information about an animal's characteristics