to protect animals.Zhu Xuan: By using animals to do experiments, people can learn a lot about them so animals can be taken good care of. We can also clone some animals that are dying out. So animal experiments ……

the human-animal relationship according to the story?A. Humans and animals can live apart.A. Humans and animals can live apart.B. We can stop harming animals for sports.B. We can stop harming animals ……

, such as bats, rats and birds, can carry viruses. These animals have strong immune systems (免疫系统), so they can live with the viruses and won't get sick. But when they bring the viruses to humans, humans ……

, such as bats, rats and birds, can carry viruses. These animals have strong immune systems (免疫系统), so they can live with the viruses and won't get sick. But when they bring the viruses to humans, humans ……

to Japanese scientists, Asian elephants’ understanding of numbers is close to that of humans. When looking at a picture of several watermelons, the animal can count the right number of melons most ……

extinction (大灭绝).Sadly, it is because of humans that animals are in this situation now. By increasing human... harmed by humans.Sadly, it is because of humans that animals are in this situation now. By increasing ……

California, for instance, has been taught sign language. Koko can now understand several thousand... in evolution, how can't you believe that animals have feelings that human beings have?"Until ……

animals socialize with each other by play-fighting and tickling.B. Animals can’t produce positive emotions like humans do.C. Play-fighting and tickling can easily lead to attacks and real fights among ……

that prevents the cells of their lifeless bodies from dying off.Until now, we've left it to science... allowed pigs and dogs to bleed to death, then brought the dead animals back to life a few hours later ……

of love. Makelaws(法律) to stop people catching and killing animals and taking our homelands. This is also...: I'm apolar(北极) bear. We lived a happy life before, but now we face a big problem: Thetemperature(温度 ……

ecotourism make animals dumb?” And that’s not all – humans can also scare away natural predators... can be added to the long list of ways in which humans cause fast environmental change.”The basic ……

: Although it's cruel to use animals for medical tests, it benefits humans and the test results...'t scientists clone animals but not give them emotions, and then do the experiments? Please stop our ……

dying. Is this the right way for humans to treat animals?— Daniel, BeijingMan: Oh, my God! I suddenly feel that humans should not treat animals this way. I want to quit the job.Bull: Yeah! I hate ……

one study found tea could help stop cancer growth in laboratory animals. But more research was needed... of the Australian National University, said the male Y chromosome (染色体) is dying off and could run out within ……

拯救澳洲濒危野生动物，立即开始行动吧！UP to 45 species (物种) of Australian animals are in danger of dying out within... to the report, if people take action to protect them, these species can be saved. The endangered (濒危的) animals ……