The octopus is still, suspended upside down on the glass wall of her tank, just below water level. Her eyes are shut, her eight arms knotted snug behind her head, her pale-gray body gently pulsing.
"But basically all mammals—rats, dogs, cats—also have REM sleep. And it’s during REM sleep that we take experience and reshape it in novel ways." Reading time 4 minutes An enormous playroom filled ...