Look closely: This hairy, pulsating carpet is actually a group of harvestmen, an arachnid commonly known as daddy longlegs.
This aggregation of harvestmen helps fend off potential predators. When one of the arachnids senses danger, he moves his body up and down to create a vibration; a whole jiggling group of daddy longlegs provides an even greater deterrent. There’s nothing quite like teamwork to make your skin crawl. Via Boingboing:
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