D.它们减少每天吃食物的数量。根据文章第一段第一句:“Inordertogetreadyforhibernation, bearseatevenmorethanusual, pilingonthepoundstosurvivethelongcoldwinter. (为了准备冬眠,熊吃得比平常更多,增加体重以度过漫长寒冷的冬天。)”可知,熊通过吃增加它们的重量来准备冬眠。结合选项,故此题答案为C。 反馈 收藏
Bears hibernate throughout winter months. Bears do not eat, drink or defecate when they hibernate but that doesn’t mean they are in complete repose. Actually, bears are not true hibernators, they enter a torpid state which is slightly different from true hibernation. In true hibernation, like...
Some animals hide during the winter.Their body temperature and heart rate slow down. This helps them to save their energy. They do not eat.They live off their fat. They do not wake up until the weather gets warmer. We call this hibernation(冬眠). Snacks, frogs, and bears hibernate in ...
Each fall, Katmai National Park holds a competition as Alaska’s brown bears finish fattening up for their long winter hibernation. This year, Mashable is getting in on the salmon-munching action. Check back with us all week as we follow the fat bear face-offs each day, and remember to ...
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Some other animals sleep for a long time in winter. They are in hibernation (冬眠) 【小题5】 In winter they eat nothing. They're very hungry when they wake up in spring. They usually look for food in March or April. Bears, snakes and frogs are such animals. Winte...
"The quality of mammalian hibernation is similar from bears to hamsters to ground squirrels," Drew said. "The distinguishing feature is how cold they get." Related: Sleep tight! Snoozing animals gallery Do reptiles hibernate? Tegus, lizards native to Brazil, can spend up to six months undergr...
Many animals hide during the winter. Their body temperature and heart rate slow down. This helps them to save their energy. They do not eat. They live off their fat. They do not wake up until the weather gets warner. We call this hibernation(冬眠). Snakes, frogs and bears hibernate in...
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A few desert animals,such as the Roundtailed Ground Squirrel,sleep away the hottest part of the summer.They also hibernate (冬眠) in winter to avoid the cold season.Some desert animals such as Desert Toads,stay deep under the ground until the summer rains fill ponds. They then come out fr...