They're tiny, vicious and ready for action. It is quite a good thing that jumping spiders are small and that we are big. The jumping spider is a spider in the same sense that a Ferrari is a car. Let's start with their style of hunting.
Most spiders spin webs to catch their prey, or at least lie passively in wait.
Jumping spiders are active hunters. Their legs, engineered like hydraulic pistons, make their enormous leaps possible. Serrations and claws on their feet allow them to cling to almost any surface. They move in quick jerks, and, when they see a fly or small moth, they jump high in the air to make a precise landing on their victim. The savagery doesn't stop there.