The Sputnik Bug is a small, non-sapient arthropoid native to an unnamed high-gravity planet. With an elongated body, it has the ability to roll into a ball, allowing the bug to roll down the sand dunes of its homeworld. In such a high-gravity location, falling can be really dangerous. Because of this, the Sputnik Bug has developed thick body armor with many spines on its back.
- Anatomy of an Alien (1998)