Birds and mammals invest in quality and not quantity, as opposed to fish and reptiles.

鸟类和哺乳类靠质生存,而非以量取胜，这与鱼类和两栖类不同。

耶鲁公开课 - 心理学导论课程节选

Different amount of metabolic activity because one has a greater volume of cytoplasm than the other, for example, so these are exactly the right kinds of ideas.

大小不同,代谢活动的总量就会不同,可能因为一个细胞的胞质比另一个体积大,以上这些观点都是非常正确的

耶鲁公开课 - 生物医学工程探索课程节选

Well, one reason to do this is because on each post-synaptic neuron there might be many axons coming together at once, and each one might be generating a different kind of signal, through maybe even different neurotransmitters.

嗯 一个原因是在每个,突触后神经元上可能有,许多同时到达的轴突,每个都可能通过不同的神经递质,产生不同的信号

耶鲁公开课 - 生物医学工程探索课程节选