Most spiders are predators, they capture prey. The best-known method how spiders capture prey is by using a sticky web. The placement of the web allows different spiders to trap different insects in the same area. Flat, horizontal webs allow them to trap insects that fly up from vegetation underneath, for example. Flat vertical nets allow them to trap insects in flight. The spiders that build webs usually don’t see very well, but they are very sensitive to vibrations.