The term "lucid dream" was coined by Dutch writer and psychiatrist Frederik van Eeden in 1913 in his article "A Study of Dreams." However, lucid dreaming has been known and practiced since ancient ti...
The term "lucid dream" was coined by Dutch writer and psychiatrist Frederik van Eeden in 1913 in his article "A Study of Dreams." However, lucid dreaming has been known and practiced since ancient ti...
The entire Corvid family of birds is clever. The group includes magpies, jays, ravens, and crows. These birds are the only non-primate vertebrates that invent their own tools. Crows recognize human f...