Panamanian jumping spider Eris aurantia (family Salticidae) at start of jump onto prey cricket. The Salticids are a family of hunting spiders, named for their ability to jump from 2- 20x their body length. They have very acute binocular vision, which allows the prey to be detected & also provides good accuracy when making jumps between twigs. Having detected their prey, they stalk it & gradually creep closer. Finally they jump the last few cms, from a standing start and grab hold of the prey with their forelegs.
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