Jumping spiders are generally active day hunters. Their well-developed internal hydraulic system extends their limbs by altering the pressure of body fluid (blood) within them. This enables the spiders to jump without having large muscular legs like a grasshopper. Most jumping spiders can jump several times the length of their body. When a jumping spider is moving from place to place, and especially just before it jumps, it tethers a filament of silk to whatever it is standing on. Should it fall for one reason or another, it climbs back up the silk tether. They do not rely on a web to catch their prey. Instead, these spiders stalk their prey. They use their superior eyesight to distinguish and track their intended meals, often for several inches. Then, they pounce, giving the insect little to no time to react before succumbing to the spider’s venom. I found this little guy in the same place I found him a few days ago. He must live in one of the legs of this old wire fence. This was taken in my back yard in Rockaway, NJ. I used a Nikon Coolpix L110 digital camera.