“The ability to produce venom: all spiders, except one family, produce venom to subdue or kill prey. The venom is produced by a pair of venom glands in the cephalothorax and secreted through small openings on the tip of the fang. Most spiders are polyphagous and feed on a variety of available prey; they are one of the most common predator groups found in ecosystems and have special adaptations towards a predatory way of life.”