Stoned Ape Theory short from Duncan Trussell unaired pilot

I was surprised when I saw "Stoned Ape Theory" on TripTank's 4th episode, I'd know I'd seen it somewhere before. Apparently it's from Duncan Trussell's Comedy Central Pilot “Thunderbrain.” (I'm a huge Duncan Trussell fan and am sure I've seen this clip on his site or youtube page.)

I wonder now how many of the clips are cobbled from other sources?

..or maybe not lol http://www.WorldofBong.com