Other features, however, show experts that Pakicetus is a transitional form between a group of extinct flesh-eating mammals, the mesonychids, and cetaceans. 然而另一个因素向专家们展现了P是位于灭绝的食肉哺乳动物和鲸鱼的中间的生物。
It is not clear whether cetaceans undergo dream sleep. 鲸类动物是否经历梦睡眠还不清楚。
Similarly, although at least some cetaceans have taste buds, the nerves serving these have degenerated or are rudimentary. 相同的,尽管至少一些鲸鱼还有味蕾,但服务的神经已经退化或根本未发育。
Cetaceans reduce the number of breaths they take during rest periods. 鲸类动物在休息时减少它们的呼吸次数。
Once shorewards of the breakers cetaceans and odontocetes could interpret relative quite as deeper water, and swim shorewards to their sad suicides. 一旦捕捉到向岸碎浪的轻响,海豚和齿鲸可能会由于那种相对的安静而误以为是深水区,并岸边游去,导致令人痛惜的自杀。
She concluded," Essentially, the brains of primates and cetaceans arrived at the same cognitive space while evolving along quite different paths. " 她总结说,“灵长类动物和鲸类的大脑的认知能力基本上处在同一是水平,只是进化方式截然不同。”
In former classifications a major division of Mammalia comprising mammals with nails or claws; distinguished from hoofed mammals and cetaceans. 在以前的分类作为哺乳动物中有指甲或爪的一个主要分支;区别于有蹄目动物和鲸目动物。
Cetaceans are not created to decorate the immense chaotic oceans or to offer poets or litt é rateurs aspirations or inspirations. 上帝创造鲸鱼,并不是为了点缀那广漠无垠喧嚣混沌的海洋,也不是为了激发诗人或者文人骚客的灵感或者情感;
Although limited to a skull, the Pakicetus fossil provides precious details on the origins of cetaceans. 尽管只有头盖骨,P化石仍然提供了关于鲸鱼起源宝贵的细节。
The fossil consists of a complete skull of an archaeocyte, an extinct group of ancestors of modern cetaceans. 这块化石有一个完整的头盖骨,这是一群现代鲸鱼已经灭绝的祖先。
In combination with some relevant sequences from GenBank, 22 individuals of cetaceans including 13 species of seven families from toothed whales and one species of one family from baleen whales were included in the present analysis. 结合GenBank检索得到的相关序列,本文涉及的数据包括齿鲸7个科13个种,须鲸1个科1个种共22个个体。
On March 31,1979 a male sei whale was found stranded on Records of Cetaceans in the Southern Taiwan Straits and along the Coast of Southern Fujian Province 本文报道了1979年3月31日在江苏省东台县港搁浅的一头鲸,并根据以往捕获记录论述了鲸在中国近海的分布。台湾海峡南部及闽南沿岸的鲸豚记录
Some advances in the studies of cetaceans in Chinese waters were reviewed. 综述近年来中国鲸豚类的保护遗传学研究进展。
A survey on the incidental catches of small cetaceans in coastal waters of China 中国沿岸小型鲸类误捕情况的调查
The method to extract genome DNA from old skeletal specimens of cetaceans was improved and the PCR amplification reaction was optimized. 改进了从鲸类陈旧骨骼标本中进行基因组DNA提取和PCR扩增的方法。
Totally 20 individuals of small cetaceans were incidentally captured from Dongshan Ports during our study. Among them 6 ( 30%) were bottlenose dolphins, and they were captured by trawl net ( 2 individuals) and purse net ( 4 individuals). 调查期间从东山港记录到的误捕致死的20头小型鲸类中,6头(占30%)为瓶鼻海豚,分别由拖网和围网捕获。
Rearing of cetaceans in captivity in China 中国鲸类动物的人工饲养
Sex Identification of Cetaceans by PCR with Sry-Specific Primers PCR扩增Sry基因进行鲸类动物性别的鉴定
Records of Cetaceans in the Southern Taiwan Straits and along the Coast of Southern Fujian Province 台湾海峡南部及闽南沿岸的鲸豚记录