“A penguin walks into an airport…” (joke)

Penguins are flightless birds. An airport joke was posted on Reddit—Jokes on February 11, 2015:
   
“A penguin walks into an airport… A TSA officer stops him and says ‘Penguins can’t fly.’”
   
   
Wikipedia: Penguin
Penguins (order Sphenisciformes, family Spheniscidae) are a group of aquatic, flightless birds. They live almost exclusively in the Southern Hemisphere, with only one species, the Galapagos penguin, found north of the equator. Highly adapted for life in the water, penguins have countershaded dark and white plumage, and their wings have evolved into flippers. Most penguins feed on krill, fish, squid and other forms of sea life caught while swimming underwater. They spend about half of their lives on land and half in the oceans.
   
Reddit—Jokes
A penguin walks into an airport…
submitted February 11, 2015 by ShitWolf88
A TSA officer stops him and says “Penguins can’t fly.”
COMMENTS
mystosparks
“Nor can humans so fuck you too.” -penguin
 
Twitter
Simply_Godzy™‏
@Godzygodzy
A penguin walks into an airport…: A TSA officer stops him and says “Penguins can’t fly.”  submitted by Shit… http://bit.ly/1yknXjj
6:07 PM - 11 Feb 2015
 
Twitter
Ese wei‏
@gruben59
*penguin walks into an airport*
*security stops him and says*
“Penguins can’t fly.”
3:59 PM - 13 Feb 2015
 
Twitter
Pratiik Rege‏
@PratiikRege
*penguin walks into an airport*
*security stops him and says*
“Penguins can’t fly.”
11:04 PM - 16 Feb 2015
   
Reddit—Jokes
Posted by u/hacktoyou December 1, 2017
A penguin walks into an airport…
A TSA officer stops him and says “Penguins can’t fly.”
COMMENTS
ifgburts
Strap a jet engine to anything and it can fly
   
Reddit—Cleanjokes
Posted by u/slcikdeaaal July 22, 2020
A penguin walks into an airport
The TSA officer stops him and says, “Sorry pal, penguins can’t fly.”