Most do not studyanimal intelligence, but they encounter it, and the lack of it, every day.
他们大都不研究动物智能，但他们每天都碰到或碰不到动物智能。
2
Even though they spend the significant portion of the year hibernating, according to this case study, marmots are still considered excellent subjects for animal behavioral studies.
尽管土拨鼠一年中的大部分时间都在冬眠，根据这个案例研究，它们仍然被认为是动物行为研究的优秀对象。
3
Last time, we discussed some patterns of animal behaviour, and in today's lecture we will concentrate on the methods used in the study of animals.