Yes, Spiders Have Bad Dreams

If you see a spider sitting still, your first instinct may be to smash it, but scientists say the spider may be dreaming. German researchers say jumping spiders, while asleep, can fall into an REM cycle, the same sort of deep dream-like sleep with rapid eye movement that humans do. Jumping spiders were observed while taking 8-legged naps with night vision cameras, but unfortunately that doesn’t let us know what they were dreaming about.