sleeping is awkward and leaves them weak to their enemies.So giraffes mostly take short naps while standing up.But they do need to lie down for half an hour or so of deep,dreaming sleep.It can take a whole minute for a giraffe to get back up on its long legs again.(...
They don't get much sleep this way — when they land, they sleep a lot to make up for it. Many animals don't do all their sleeping at once. They nap throughout the day. When ducks nap in a row, the ones at either end rest...
How do animals sleep? Most people think they sleep in the same way as us. In fact, the ways they sleep are much more different — they can lie down, sit or stand while they sleep. Swiss scientists did a study on 250 different mammals (哺乳动物). They found that the animals' ...
Lions sleep a lot, too. They can feel safe sleeping. After all, they are predators. They hunt other animals. Who would bother a sleeping lion? Light Sleepers Giraffes sleep for just a few hours each day. For giraffes, it is not safe to sleep much more than that. Giraffes have long,...
Horses are majestic and strong animals. They are also unique in the ways they get rest. While humans need to lie down for 8 hours at night to sleep, horses have the ability to feel rested after a 30-minute snooze standing up! So how do horses sleep standing up? And what other interes...
How do animals sleep?动物怎样睡觉?阅读理解D体裁:说明文难度:★★★建议用时:6mins实际用时::mins Dolphins are air-breathing animals that swim in the sea. But how do they sleep? If they stop swimming to take a nap, won't they sink or drown? Giraffes have almost no deep sleep. Do they...
题目Do you like the amazing animals—dolphins?They sure are fun to watch jump and spin (快速旋转) out of the water,but have you ever wondered how they get the energy to do all their tricks?Do they sleep?Let's dive into that mystery and learn all about how dolphins s...
— How do wild animals live during the winter?— I know some animals sleep the winter. A: throughB: beforeC: afterD: at相关知识点: 试题来源: 解析 A 正确率: 33%, 易错项: D 翻译 — 野生动物在冬天是怎么生活的? — 我知道有些动物会冬眠。 本题主要考查时间介词。 A项,through “通过;...
Why Do Giraffes Sleep So Little? Giraffes are really tall mammals, with 3-meter-long lanky necks. They can run atspeeds of up to 38 miles per hour(60 kilometres per hour). Although predators in the wild can run much faster and can easily outrun these animals. How scary is that?
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