面对一件物品,人类的手可以通过抚摸判断其材质纹理,用抓摸的方式确定其形状,靠挤压来评估其硬度,而一些动物则使用触须来感知周围的细节。触须不同于普通的毛发或软毛。首先,触须更粗而且往往更长。如果你抚摸过猫和狗的面部,可能已经注意到这点。其次,与普通的毛发相比,触须在皮肤里的毛囊有更多的神经和血管。称为机械性感受器的专门神经使触须对触摸非常敏感,就像人的指尖一样。触须往体外延伸,实际上大大地拓宽了动物 In the face of an object, a human hand can determine the texture of the material by stroking it, determining its shape by grasping it, squeezing it to evaluate its hardness, and some animals using a whisker to sense the surrounding details. Tentacles are different from normal hair or fur. First, the tentacles are thicker and tend to be longer. If you touch the face of cats and dogs, you may have noticed this. Second, the tentacles have more nerves and blood vessels in the hair follicles in the skin than normal hair. Specialized nerves called mechanoreceptors make the whiskers very touch-sensitive, just like human fingertips. Tentacles extended to the outside, in fact, greatly expanded the animal