Vocabularies
寝そべった
lying (原型:lie)
例えば～のような（2語）
such as～
All animals sleep in the same way.
False
(Part 1)l.2~
animals sleep in different ways for different reasons.
How long do typical meat-eating animals sleep a day?
They sleep for more than 13 hours a day.
These animals sleep for several hours a day in all.
これらの動物は、1日に合計で数時間眠ります。
捕食動物（名詞）
predator
Vして・・・を過ごす
spend・・・Ving～
Lions and tigers sleep longer than humans do because they are tired.
False
(Part 1)l.8-9
Why do they sleep such a long time? The reason is simple. They do not have predators.
Why do meat-eating animals sleep for a long time?
Because they don't have predators.
Plant-eating animals spend most of their time eating and watching for predators.
草食動物は自分たちの時間のほとんどを、食事をしたり捕食動物を警戒したりして過ごす。
typical
典型的な
2つの～、少数の～
a couple of～
Plant-eating animals sleep without lying to be able to move quickly when something danger happens.
True
(Part 2)l.5~
Both horses and giraffes sleep in a standing position to respond to any danger quickly.
Why do plant-eating animals sleep without lying?
Because they have to respond to any danger quickly.
Surprisingly, they sleep by resting one half of their brain and closing one eye.
驚くべきことに、彼らは自分たちの脳の片方を休め、片方の目を閉じることによって眠る。
表面（名詞）
surface
～に反応する
respond to～
Meat-eating animals sleep longer than humans, but shorter than plant-eating animals.
False
(Part 2)l.8~
We sleep shorter than meat-eating animals, but longer than plant-eating animals.
How long do horses sleep a day?
They sleep for a couple of hours a day.
Both horses and giraffes sleep in a standing position to respond to any danger quickly.
馬とキリンの両方とも、どんな危険にも素早く反応するために、立った姿勢で眠ります。
移住している（形容詞）
migratory
合計で
in all
Some ocean animals and migratory birds can sleep and do something at the same time.
True
(Part 3) l.9～
Would you like to sleep and do something at the same time like whales and cranes?
How do whales sleep?
They sleep by resting one half of their brain and closing one eye.
Migratory birds, such as cranes, also sleep in the same way as whale during their long flights.
鶴のような渡り鳥は、長い飛行の間、クジラと同じ方法で眠る。