Video unavailable
This video can't be played right now.
Science is a LIAR sometimes. (Stupid Science Bitch)
Mac tries to redeem his credibility by casting doubt on the theory of evolution.
Suggested videos
IASIP - Science is a Liar sometimes
Frank Reynolds (Best of Its Always Sunny in Philadelphia) · 3:51
John Candy: The Lovable Funny Man | Full Documentary | Biography
Biography · 44:35
Science Is a LIAR Sometimes
bigjewmoney · 1:35
John Candy Handles A Bar Brawl Exactly Like Your Uncle At Thanksgiving | Going Berserk
HaHa Picks · 5:00
It's Always Sunny In Philadelphia | Season 8 Ep. 10: Mac Evolution Highlight | FXX
FX Networks · 4:43
Top 10 Hilarious John Candy Moments
WatchMojo.com · 15:04
It’s Always Sunny in Philadelphia: Science is a Liar Sometimes (censored)
Jose Trujillo · 3:16
Armed and Dangerous Full Movie
Matthew Tardiff · 1:27:33
IASIP Science is a Lie Sometimes
Matthew Orosz · 8:47
John Candy: I Like Me - Official Trailer | Prime Video
Prime Video · 2:51
Science is a liar sometimes!
Untethered Rage · 0:08
John Candy scene in “Home Alone”
Chicago magazine · 0:50