is that Neanderthals and Homo Sapiens
frequently mated with each other.
The Big Bang Theory Season 9, Episode 24
...how does the biologically superior
Homo novus get to work...
The Big Bang Theory Season 2, Episode 5
A Homo habilis discovering
his opposable thumbs says, "What?"
The Big Bang Theory Season 1, Episode 6
...I thought that Homo habilis line
really put him in his place.
The Big Bang Theory Season 1, Episode 6
...Homo habilis would've figured out
to kill the guy with the runny nose.
The Big Bang Theory Season 1, Episode 11