system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Trek] What's the Tribble's means of locomotion? (Other than people carrying them.)
gpt
We see them moving and even climbing, so the likeliest scenario is that their hairs are actually fibrous cilia that can propel them and grip rough surfaces, but are still very soft if stroked the correct way.  Not unlike sharkskin, which is very smooth in one direction but rough the other, except on each individual hair.