What was the first animal to be domesticated? When do chimpanzees eat? When did chimpanzees evolve? Where was corn first domesticated? Are horses native to North America? When do wolves hunt? When do wolves eat? When were chimpanzees discovered?
(驯化) of wolves thousands of years ago.Before this recent study,a common thought about the precise origin of North America's domestic dog was that Natives domesticated local wolves,the descendents(后代) of which now live with people in Alaska,Canada,and the Lower 48.Dog remains from a ...
答案:C 填空题 Dogs were first domesticated from wolves at least 17,000 years ago, but perhaps as early as 150,000 years ago based upon recent genetic fossil and DNA (36)___. In this time, the dog has developed into hundreds of breeds with a great degree of (37)___. For example,...
(驯化) of wolves thousands of years ago.Before this recent study,a common thought about the precise origin of North America's domestic dog was that Natives domesticated local wolves,the descendents(后代) of which now live with people in Alaska,Canada,and the Lower 48.Dog remains from a ...
When were sheep domesticated? When did dire wolves go extinct? When did dogs diverge from wolves? Are flying foxes native to Australia? Are flying foxes marsupials? How long do red foxes live? How many red foxes are left in the wild?
their mother had to lick each of their sealed eyelids one by one when they were born. They were healthy wolves if the eyelids were open; otherwise, they were blind wolves. Hui'er succeeded in opening two of them, but failed at the third one. The poor thing would grow up to be a bl...
wolves begin to bond with humans C. dogs became friends with humans D. dogs were domesticated by humans5. What's the purpose of the passage? A. To call on humans to be friendly to dogs. B. To give advice on how to get along with dogs. C. To introduce the evolution process of ...
WolvesCoyotesStable isotope analysisGeometric morphometricsNorthern Great PlainsDomesticated dogs ( Canis familiaris ) were an important resource for many indigenous groups, including Plains peoples. Plains people used dogs for hauling materials, as camp or village warning systems, as sources of food, and...
1.D.细节理解题.根据第一自然段There are a few hard facts that all agree on. These include that dogs were once wolves and they were the first animal to be domesticated (驯养) by humans.可知狗是人类饲养的第一种宠物,结合选项,故选D.2.C.细节理解题.通过题目中出现的30,000-year-old animals...
When were cats domesticated? When did tyrannosaurs go extinct? What is a group of magpies called? What birds mate for life? Did ornithopods have feathers? What does it mean when a peacock spreads its feathers? When is mating season for wolves? Are chickens related to dinosaurs? When do hi...