Presenter:托福听力讲师,帮你放~~~心考托福的方欣老师
本期Notes
先介绍三种海洋生物:
章鱼 octopus
鱿鱼 squid
墨鱼 cuttlefish
章鱼跟另外两种鱼的不同是腕足数量的不同
Octopus only have 8 arms, but squid and cuttlefish both have 8 arms and 2 tentacles.
camouflage 伪装能力
tentacle 触须
海洋中的霸主:whales鲸
属类:fish× mammal
Whales are divided into two categories
1.toothed whales齿鲸,包括抹香鲸(sperm whales)和虎鲸(killer whales)
2.Baleen whales须鲸,包括蓝鲸(blue whale)
另一种海洋中的mammal是dolphins海豚
echo-location 回声定位
Both whales and dolphins evolved from land-dwelling mammals(陆生哺乳动物).
And DNA research suggests that whales and dolphins are closely related to hippos(河马).
生物发光 bioluminescence
水母 jellyfish
琵琶鱼 anglerfish
防御机制 defense mechanism
猎物 prey
捕食者 preydator