Associate Professor Yeh Li-sen of National Taiwan University's Department of Veterinary Medicine says that research has shown that most vertebrates have similar cerebral nervous systems, nerve pathways from the peripheral areas of the body to the cerebrum and chemical signaling substances to those of humans, so that just like humans they can experience fear and pain.
台大獸醫系副教授葉力森表示，人類經由科學研究得知，大部份脊椎動物具有類似人的大腦神經、身體周邊到大腦的通路與傳遞反應的化學物質存在，與人類一樣可以感受相同的畏懼、痛苦。