RESEARCHERS FIND EVIDENCE OF HOURSLONG STONE AGE RAVES:

Maybe this is what it means to have a “Yabba-dabba-do time.”

Stone Age ancestors danced for hours in a sort of psychedelic trance, researchers have found, citing evidence from necklaces and clothing made using elk teeth 8,000 years ago.

The teeth were sewn into clothes or suspended in a way that they made loud rattling noises when the wearers moved, according to auditory archaeologist Riitta Rainio from the University of Helsinki.

“Wearing such rattlers while dancing makes it easier to immerse yourself in the soundscape, eventually letting the sound and rhythm take control of your movements,” Rainio said, according to a report published by the school. “It is as if the dancer is led in the dance by someone.”

And Joe Biden was around back then to bust them all: Flashback: RAVING LUNACY: With talk of a Joe Biden run for the White House, it’s worth remembering his horrible anti-rave law.