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Spider Pheromone Lasso (2D)

2D canvas companion to the bolas-spider hunting lab: tune pheromone density, reel speed, moth count and throw accuracy, then click to launch the sticky bolas and watch momentum transfer on every catch.

Animals & Their World2DModerate60 FPS📱 Mobile-adapted⇄ 3D version

This 2D companion drives the same hunting mechanic as the 3D bolas spider through a plain canvas view: a pheromone cloud lures moths in with a distance-weighted attraction force, a click launches the sticky bolas along a gravity-and-drag projectile arc that snaps taut into a tethered pendulum swing at full thread length, and every catch resolves as a real inelastic collision — momentum p = m·v is conserved and the combined mass slows before the spider reels its catch home.

⚙ Under the hood

2D bolas-spider hunting lab: click-to-throw projectile physics with gravity and drag, a taut-thread pendulum constraint, a density-weighted pheromone attraction field, and inelastic-collision momentum transfer on every catch.

bolas spiderpheromone lureprojectile motionmomentumtethered pendulumpredation

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install