The theory was that these deep-space colonies of beavers dam up troublesome black holes with their celestial lodges. They move leisurely through space propelled by flapping their tails to either the strains of Strauss ("On The Beautiful Blue Danube"), Jerry Goldsmith or John Murphy ("Mercury").
Or that's the mother log ship leaving orbit from around planet Beaver.
“I just read this great science fiction story. It's about how machines take control of humans and turn them into zombie slaves! . . . HEY! What time is it?? My TV show is on!” - Bill Watterson