Scientists Made Snails Remember Something That Never Happened to Them
Recently, the scientists realized that even when they interfered with their trained snails’ brain cells in a way that should have removed the memory completely, some vestige remained. They decided to see whether something beyond the brain cells’ connections to each other — namely, RNA — could be hanging on to the memory. To understand what was happening in their snails, the researchers first extracted all the RNA from the brain cells of trained snails, and injected it into new snails. Next, the researchers took the brain cells of trained snails and untrained snails and grew them in the lab. The memory of the trained cells appeared to have been transferred to the untrained ones.