Svante Pääbo proposes that modern Homo sapiens have a 'madness gene" that Neanderthals lack. What does this madness gene" make humans do - something that Neanderthals did not do?
a. Create art
b. Play sports
c. Constantly explore and go new places
d. Think about their past
e. Plant crops and domesticate livestock
f. Develop written language
g. Develop mathematics