he started avoiding her
: Sparkly_alpaca, “What Are the Coolest Psychology Tricks That You Know
or Have Used?” Reddit, November 11, 2016,
https://www.reddit.com/r/AskReddit/comments/5cgqbj/what_are_the_coolest_psychology_tri
cks_that_you/d9wcqsr/
.
The earliest remains of modern humans
: Ian Mcdougall, Francis H. Brown, and John G. Fleagle,
“Stratigraphic Placement and Age of Modern Humans from Kibish, Ethiopia,”
Nature 433,
no. 7027 (2005), doi:10.1038/nature03258.
the neocortex . . . was roughly the same
: Some research indicates that the size of the human brain
reached modern proportions around three hundred thousand years ago. Evolution never stops,
of course, and the shape of the structure appears to have continued
to evolve in meaningful
ways until it reached both modern size and shape sometime between one hundred thousand
and thirty-five thousand years ago. Simon Neubauer,
Jean-Jacques Hublin, and Philipp Gunz,
“The Evolution of Modern Human Brain Shape,”
Science Advances 4, no. 1 (2018):
eaao5961.
