Jumping Spider in Slow Motion
This is a jumping spider captured in action with a high
speed video camera.
Jumping spiders are generally diurnal, active 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. The jumping spider can therefore jump 20 to
60 or even 80 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.
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