Do animals dream?

Rats replay their maze runs during sleep, and dogs twitch through imaginary chases.

The answer

Research strongly suggests that many animals dream. MIT scientists found that rats replay specific neural patterns from maze navigation during REM sleep, effectively 'dreaming' about their waking experiences. Dogs exhibit REM sleep behavior including twitching, paddling, and vocalizing, suggesting active dream states. Even some invertebrates like cuttlefish show rapid color changes during sleep that mimic their waking camouflage patterns, hinting at dream-like brain activity across a surprisingly broad range of species.

Source: MIT / Science

More from Nature & Wildlife

All Nature & Wildlife →