许多蜘蛛都有特殊的适应性,可以让他们走很容易沿着相对平稳或垂直的表面。每条腿年底覆盖着厚刷子的头发,和每个头发覆盖着细微的“脚”。All the tiny feet grip the small bumps on whatever the spider is walking on, allowing the spider to move easily over most terrain (the smooth surface of the bathtub being a notable exception for many species).
Web-spinning雌性可能释放信息素直接进入空气或外套与信息素的网,让自然的“化学天线。”Males may also stake out developing, sexually immature female spiders, so they can be the first to mate after the spider's final molt.