Unlike most other extraterrestrial life forms in Rick and Morty, the snakes on this planet do not communicate with regular language. Instead, they communicate by hissing.
Morty was bitten by a snake astronaut, so Rick analyzed this planet in order to find an antidote. This led to their discovery of snake jazz, and also the antidote. Morty later returned to this planet to deliver Slippy disguised as the astronaut snake that he previously killed; the return of which sparked a series of events and led to the snakes inventing time travel. Rick and Morty returned to this planet in its past to deliver instructions on how to invent time travel many years in advance. The snakes would use time travel to alter events in the past and future; the increased activity eventually got picked up by the Time Police. Shleemypants and his colleague traveled to the planet in the distant past and beat up the first snake to use a stick as a tool, which stopped the snakes from becoming an advanced species.
The appearance of Snake Planet is vastly similar to that of Earth, in that it has land, sea and clouds. Snake Planet also has a half-ring of debris around its globe, which snakes around and past the planet. It orbits around three suns, one of which is blue.