For polar bears, summertime is definitely not when the living is easy. They are apex predators, mighty hunters, and as Inuit and research scientists have long known, they prefer a good fatty meal of seal, caught from the sea ice. ...
Polar bears are the poster animals of global warming. The image of a polar bear floating on an ice floe is one of the most dramatic visual statements in the fight against rising temperatures in the Arctic.Langan, FredPhysics of Electronic and Atomic Collisions: ICPEAC XI...
When Polar Bears Attack Polar Bears and Climate Cage Polar Bear Habitat: Life on the Ice Two bears frolic in Manitoba, Canada. George Lepp/Getty Images The polar bear, or Ursus maritimus (sea bear), probably evolved about 150,000 years ago from brown bears [source: Live Science]. ...
题目Global warming is getting worse. How does it affect polar bears? A. They can swim more easily B. Their hunting areas are shrinking C. They can find more mates D. Their fur becomes thicker 相关知识点: 试题来源: 解析 B。解析:全球变暖加剧,对于北极熊来说,冰川融化,它们的狩猎区域在缩小...
The polar bear cubs leave their mothers 2 – 3 years after their birth. They will now live their own and have to avoid any adult male that can possible kill them anytime. If they get close to male bears they attack and eat the cubs. ...
Polar bears (Ursus maritimus) are generally solitary creatures that only come together to mate during the breeding season, which typically runs from late March to early May. "In spring, what the males do is just roam around and try to pick up females," said Jon Aars, a polar bear resea...
5. How can we protect polar bears? (回答不多于15个词) 相关知识点: 试题来源: 解析 We can protect polar bears by reducing our carbon footprint, supporting conservation efforts, and raising awareness about their plight. For example, we can choose to use public transportation, support organizat...
the bear is generally caught off guard by a human presence. With that surprise comes their instinct to defend themselves, their cubs, or their food. Predatory bear attacks are rare for grizzly bears and black bears. Polar bears, on the other hand, have been known to track and attack ...
23. How can we help polar bears?A. Stop your carbon footprint.B. Join action groups to protect polar bears.C. Learn more about the problems of polar bears.D. Make friends with polar bears. 相关知识点: 试题来源: 解析 B. Join action groups to protect polar bears. 保护北极熊需要采取...
How do polar bears stay warm?枫叶小熊幼儿园MapleBear 作者: 绿地校区 张胤 01-30 15:39 投诉 阅读数:248来自专栏:绿地老街校区(East Campus) 共150篇a 一场别开生面的科学课开始啦!!发布于 河南枫叶小熊幼儿园MapleBear 我们不教英语,我们用英语教学 +关注 ...