Most people think.... User curiouscabbage69, in the Ricky Gervais, Steve Merchant and Karl Pilkington subreddit, 27 Jun 2019
TIL that if you cut flatworms head off, not only it will grow back but its memory will come back too. User dontfuckingknowwwww, in the Today I Learned (TIL) subreddit, 27 Jun 2019
Flatworms are able to retain memories after being decapitated and regenerating a new head User wtfjen, in the Biology subreddit, 18 Jul 2013
Flatworms are able to retain memories after being decapitated and regenerating a new head User wtfjen, in the Reddit Science subreddit, 18 Jul 2013