What could be more primal than fish?
The fish-slapping game:
JUST EAT Kidnap - Fishslap Antony Worrall Thomson - Play The Game Now
I must need more coffee. I thought this was going to be an article on some type of fish that had been somehow slapping game animals.
"I puked like a hero for the rest of the night," Anthony Bourdain, 2002. (After spending the day eating ant eggs, bugs, and larvae, and drinking some gelatinous alcoholic stuff.)