科学家们已经发现，哺乳动物毛囊的复杂模式可能源于一个非常简单的过程，该过程涉及遵循化学信号的细胞。这些发现挑战了一个由来已久的理论，Scientists have discovered that the intricate patterns of hair follicles on mammals may arise from a remarkably simple process involving cells following chemical signals. The findings challenge a long-standing theory and