以及下一句Putting electric fencing around chicken houses and other farm animal quarters is also highly effective at getting grizzlies away. 在鸡舍和其他农场动物生活区周围设置电动围栏也能有效地赶走灰熊。这说明灰熊在没有机会接触到食物的情况下是不会给人类带来麻烦，和人类是可以和谐相处的。B. People can...
Which animal is an endangered species? A. Rabbit B. Panda C. Dog D. Cat 相关知识点: 试题来源: 解析 B。解析:濒危物种是指由于受到各种因素(如栖息地破坏、非法捕猎等)的影响,其种群数量急剧减少,面临灭绝危险的物种。熊猫是濒危物种,它们的生存环境受到很大威胁。兔子、狗和猫都不是濒危物种,兔子数量...
六、 阅读理解A The se a horse is a magical animal, which has puzzled people for thousands of years. In ancient Rome se a horses were believed to be the babies of Neptune's horses. And Neptune was the god of the ocean. Now we know they are not horses at all-they are a kind of ...
But which animal has the longest tail of all? In proportion to their bodies, grass lizards have the longest tails of any known living animal. The tails of these small, lightweight lizards are two to three times the length of their torsos, Tommy Owens, a manager in the department of ...
The scientific classification of organisms is important to ensure that species identification is consistent throughout the different parts of the world. This was achieved through the binomial nomenclature, which has now become an integral part of the taxonomic system....
Apart from humans, menstruation has only been observed inother primates, e.g. Old World Monkeys and apes (inhabiting mainly Africa and Asia), 3-5 species of bats, and the elephant shrew. Do cats cry tears? “Cats can do a really sad meow, butit's not like crying. It's not tears ...
Animal Packs Many species of animals establish packs, which can be either large or small and may consist of members of the same family or unrelated animals. Lions and wolves typically roam in packs in which every animal is a family member while large herd animals in Africa, including wildebees...
The sea horse is a magical animal, which has puzzled (使困惑) people for thousands of years. In ancient Rome sea horses were believed to be the babies of Neptune’s horses. And Neptune was the god of the ocean. Now we know they are not horses at all — they are a kind of fish....
—Which animal has the stretchiest mouth? —Why do wisdom teeth come in so late? —Why did T. rex have such tiny arms? "In general, the sharper the tooth tip, the higher the potential bite force given the same input muscle force, because any such force would be concentrated at the ...
Exactly why animals play is still a matter debated in the research literature, and the reasons may not be the same for every species that plays. Determining the functions of play is difficult because the functions may be long-term, with beneficial effects not showing up until the animal's ...