What are they? Gnurrs! Where do they come out? The voodvork! The Gnurrs Come from the Voodvork Out is a classic humorous science fiction story by Reginald Bretnor, and appeared in The Magazine of Fantasy and Science Fiction. We discuss this story, then do a brief survey of other notable funny SF stories.
Links:
The Gnurrs Come from the Voodvork Out by Reginald Bretnor [Magazine of Fantasy and Science Fiction, Winter-Spring 1950]
https://archive.org/details/Fantasy_Science_Fiction_v001n02_1950-Winter-Spring_AK
Rub-A-Dub-Dub by Frank Rrichards [Imagination, June 1953]
https://archive.org/details/Imagination_v04n05_1953-06_cape1736
The Big Bounce by Walter S. Tevis [Galaxy, February 1958]
https://archive.org/details/galaxymagazine-1958-02/mode/2up
Make Mine Homogenized by Rick Raphael [Astounding/Analog April 1960]
https://archive.org/details/sim_analog-science-fiction-fact_1960-04_65_2/mode/2up
Snowball Effect by Katherine MacLean [Galaxy, September 1952]
https://archive.org/details/galaxymagazine-1952-09/mode/2up
And All the Earth a Grave by C.C McApp [Galaxy Magazine, December 1963]
https://archive.org/details/Galaxy_v22n02_1963-12
Nothing Sirius by Fredric Brown [Captain Future, Spring 1944]
https://archive.org/details/Captain_Future_v06n02_Days_of_Creation_spring_1944
Science Fiction Carnival edited by Fredric Brown and Mack Reynolds [1953]
https://archive.org/details/sciencefictionca00brow