The Hydraulic Hunter

Did you know spiders don't have muscles to extend their legs? They’re basically tiny,

eight-legged machines. Instead of muscle fibers, they use a biological hydraulic system.

By pumping their internal fluid called hemolymph into their limbs, they create instant

pressure. This pressure is what allows them to spring 50 times their own

body length. In a fraction of a second. It's the same tech we use

in heavy construction cranes. When a spider dies, it loses that

pressure, which is why their legs curl up. Nature's engineering is

often more mechanical than we think. For more secrets of the biological core,