Business insider: by Jennifer Welsh.
Strange tiny worms called planarians have the amazing ability to regrow their memories, even after their heads are chopped off.
These amazing tiny worms can regrow their entire bodies from just one cell, including their heads and brains.
Researchers have known for decades that these flatworms can regrow their heads, but the new study shows that that also involves growing back their memories. It takes a little less than two weeks to regrow their heads.