Sophistication on dolphin communication; Sounds whales make when alone; Complexity in the sound of baleen whales.doi:10.1002/j.2326-1951.1981.tb01986.xPeterTyackThe SciencesTyack, P.L., 1981. Why do whales sing? The Sciences 2, 22-25....
阅读下列短文,从每题所给的 A、B、 C、D四个选项中选出最佳选项。Why do we call the sounds of birds, whales and inse
The whale watching boats can 假take you to all of the best places to see these great Garden s at home animats Garden els happy In the future if I make a trip there, I would love to see 提示:the whales. If I can spend a few days there, I will try to do 1.平上to school all...
Sam Professor Scott says that laughter is an important social tool for allmammals– animals, including humans, dogs and whales, which give birth to live young, rather than laying eggs, and who feed their young with milk. Neil By...
Why do some soils have high porosity but low permeability? Why do sounds travel faster in solids? Why do whales and dolphins have lungs? Why are cells spherical? Why does the crust float on the mantle? Why are there chloride channels in olfactory cilia?
Do trees reduce noise pollution? How are whales affected by underwater noise pollution? Why is nonpoint source pollution difficult to control? How does particulate matter cause pollution? What causes a sonic boom? Why is burning coal a major source of pollution? How can air masses affect air ...
根据文章中the animals converge on the same choices relating to sounds and beauty,and accept the same laws of song composition as those preferred by human musicians,and hunan ears,everywhere.可知,他们倾向于发出那种悦耳动听的音乐。故选A。 2.2】B细节理解题。根据文中第四段的male hunpback whales,...
B.The whales do not have enough clean water.C.The wild Bactrian camel is the only species in the world with one hump.D.There are many elephants which work for people.参考答案:1.A 2.B 3.A 4.C 5.C【分析】本文主要介绍了澳大利亚的树袋熊。描述了它们圆圆的眼睛、头、耳朵和身体, 以及...
If you want a good shot at surviving past infancy in your second life, you will want to select a species that has just a few, big babies. Elephants are a good option, with their single giant offspring; ditto whales. Large sharks are a solid possibility, often birthing just two large ba...
Why is the world not full of top predators, such as lions, tigers, and killer whales? Do you think risk assessment would be a better strategy for a prey animal than constant vigilance? Explain your reasoning. Explain how the three laws of motion directly affect/relate...