The service's lead scientist for the eastern cougar, Mark McCollough, said the animal has likely been extinct since the 1930s.
管理局东部美洲狮方面的首席科学家马克·麦克洛说，这种动物有可能从20世纪30年代起就已经灭绝了。
For instance, Temple Grandin, an animal scientist with Asperger's, invented a humane, efficient way to slaughter cattle.
比如动物学家坦普尔。戈兰丁，她同样也罹患亚斯·伯格症，然而她却发明了一种更为人性和高效的屠宰牛的方法。
The scientist would try showing the cans to the animal one hour later, or two.
一两个小时以后，科学家试着向动物展示这些桶。
The genome appears to be that of a "completely new" coronavirus unrelated to any known human or animal viruses, a scientist at the Canadian agency said.
加拿大研究所的一位科学家说，病毒的基因组表明这是一种“全新的”冠状病毒，与任何已知的人类或动物病毒都没有联系。
"But to count, an animal has to recognize that each object in a set corresponds to a single number and that the last number in a sequence represents the total number of objects," New Scientist added.
“一种动物要能够算，它必须知道一组物品中的每一件东西都和某一数字相对应，而最后的那个数字代表的是物品的总数。”《新科学家》说。
David Teie, a scientist and cellist with America's National Symphony Orchestra, has composed five combinations of sounds and classical music to calm even the most distressed and troubled animal.
科学家大卫·泰伊也是美国国家交响乐团的大提琴演奏家。他已创作了五首结合了声效和古典乐的乐曲，可用于安抚即使是最紧张不安的小动物。
The scientist made the assumption that there is no animal life on other planets.
这个科学家提出了其他星球上没有动物生命的假设。
He's that rare animal, a professional musician and a scientist.
他是一个罕见的天才，既是专业的音乐家，又是科学家。
How, then, does a scientist prove that an animal is capable of thinking-that it is able to acquire information about the world and act on it.
那么，科学家是如何证明动物能够思维——能够获得有关世界的信息并有针对性地行动呢？
S. scientist has demonstrated in a lab animal the successful regeneration of injured spinal nerve endings and recovery of arm movements.
科学家在实验室里成功完成了动物损伤脊髓神经束的再生及其肢体活动的恢复。
S. scientist has demonstrated in a lab animal the successful regeneration of injured spinal nerve endings and recovery of arm movements.
科学家在实验室里成功完成了动物损伤脊髓神经束的再生及其肢体活动的恢复。
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