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 get your votes in for each round. Happy fishing!Some bears hibernate in hollowed-out tree trunks. Some take a months-long rest ...
百度试题 结果1 题目 (C)4.- How long do the bears hibenate ()?-The bears hibernate for about months A. four B. five C. four or five D. five or six 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
This is 3 a migration(移栖).Some animals hibernate(冬眠) all winter. This is a deep 4 . Bears hibernate in dens(兽穴). Frogs hibernate at the bottom of 5 . The water does not freeze there. Bats hibernate in caves 6 upside down. Many animals 7 active in winter. R...
(10分)Do you know some animals hibernate (冬眠) in winter? Bears,snakes, frogs and some other animals spend the winter in a state like deep sleep. In autumn, the bear eats and eats and becomes very fat. Its hair grows longer. In late autumn, it finds a warm place and goes to ...
The Arctic winter is a challenging period for all its inhabitants, including the effective predators, polar bears. A frequent question that arises in understanding polar bear habits is, do polar bears hibernate? Unlike brown or black bears, polar bears do not hibernate during the winter, despite...
Snakes, frogs and bears hibernate in winter.Many animals stay active in winter and adapt to (适应) the cold weather. Some animals save food in summer and autumn and eat it in winter. This is what squirrels do. Other animals make changes in their bodies or behavior (行...
Polar bears do not hibernate. Only pregnant polar bears den. Unlike hibernation, a polar bear's heart rate and temperate do not decrease, this ensures the
Bear hibernation is part of a bear's annual cycle of activity, when its metabolic systems change and activity pauses for a period of time varying with the habitat's climate. Grizzly bears hibernate for 5–7 months each year. But it isn't as clear-cut as curling up and going to sleep ...
Do polar bears hibernate? Not exactly, as true hibernators do not experience an obvious drop in their heartbeat and body temperature. Polar bears undergo a deep state of walking hibernation during which themetabolismslows down. One of the distinctive traits of polar bears is that only the pregn...
In which season do animals like bears often hibernate? A. Spring B. Summer C. Autumn D. Winter 相关知识点: 试题来源: 解析 D。解析:在冬季,一些动物如熊会冬眠,因为冬季食物短缺,通过冬眠来度过寒冷且食物匮乏的时期。春季动物苏醒,夏季动物活跃地觅食等,秋季动物为冬眠做准备。