How do spiders sense vibrations in their webs?

Spiders sense vibrations in their webs using specialised sensory organs called slit sensilla, located on their legs. These organs detect even the slightest movement in the web, allowing spiders to identify the location and size of prey. Vibrations can also signal potential threats or the presence of a mate. Some spiders use different strands of their web to transmit specific types of vibrations, enhancing their ability to interpret the environment.