By working in tandem with one another, colonies of Noiskit use supersonic screeches to push intruders away from their nests. Hikers and cave divers alike agree that hearing echoes of erratic skittering is a sign that you are too close.
They gather on puddles after evening downpours, gliding across the surface of water as if sliding. Even a robust wrestler will become dizzy and unable to stand when exposed to its 200,000-hertz ultrasonic waves.
