Why do animals have different pupil shapes?
动物界的瞳孔形状差异很大，从乌贼的 W 形瞳孔到山羊的条形瞳孔。但为什么动物瞳孔的形状如此不同呢？
Synesthesia isn't just in your mind. The body reacts as if the colors were real.
具有联觉的人的瞳孔大小会根据感知到的颜色的亮或暗而变化。
