“My biology teacher grew human vocal chords in the lab. The results speak for themselves”

A pun was posted on Reddit—Jokes on November 19, 2015:
 
“Cancer research scientists have grown human vocal chords in a Petri dish. The results speak for themselves.”
 
“My biology teacher grew human vocal chords from stem cells in the lab. The results speak for themselves” was posted on Twitter on May 24, 2016.
 
The joke has been printed on many images.
     
 
Reddit—Jokes
Cancer research scientists have grown human vocal cords in a Petri dish.
submitted November 19, 2015 by UndiesinEngland
The results speak for themselves..
 
Twitter
alankemp‏
@alkemp57
Cancer research scientists have grown human vocal chords in a Petri dish
The results speak for themselves
2:54 AM - 19 Nov 2015
 
Twitter
Peter Biddlecombe‏
@Horseytalk
BBC News: Cancer research scientists have grown human vocal chords in a dish. The results speak for themselves.
3:52 AM - 19 Nov 2015
 
Twitter
Emmanuel Muema‏
@ManuMuema
Cancer research scientists have grown human vocal chords in a Petri dish. The results speak for themselves…... http://fb.me/1SwOCCt9r
4:59 AM - 19 Nov 2015
       
Reddit—Jokes
Scientists have grown human vocal chords in a Petri dish.
submitted November 27, 2015 by Battle4Seattle
The results speak for themselves.
   
Twitter
SoHaiL‏
@Sir__Sohail
My biology teacher grew human vocal chords from stem cells in the lab. The results speak for themselves…  @ShitJokes #ShitJokes #joke #pun
12:06 PM - 24 May 2016
 
Twitter
Shit Jokes‏
@ShitJokes
My biology teacher grew human vocal chords from stem cells in the lab.
The results speak for themselves…
3:21 PM - 22 Jun 2016
 
Odyssey
13 Hilarious Puns To Make Your Day Better
Darcy Dingman
Jun 27, 2016
(...)
2. Scientists have grown human vocal chords in a Petri dish.
The results speak for themselves.
 
Reddit—3amjokes
Scientists have grown human vocal chords in a petri dish. self.3amjokes
Submitted June 20, 2017 by TheAlphaTroll
The results speak for themselves.
 
Twitter
Shit Jokes‏
@ShitJokes
My biology teacher grew human vocal chords from stem cells in the lab.
The results speak for themselves.
4:23 PM - 24 Oct 2017