"Nobody would suppose that the fact that human beings everywhere always throw their spears pointy-end first shows that there must be a gene for a pointy-end-fir

"Nobody would suppose that the fact that human beings everywhere always throw their spears pointy-end first shows that there must be a gene for a pointy-end-first instinct." - Daniel Dennett. Counterpoint : "But, as Weiss discovered in a 2008 study, moths and butterflies can retain memories from their time as caterpillars, suggesting that the creatures' nervous system remains during the transformation into a butterfly."