system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How do snakes never get in a knot? And if they do, how do they escape?
gpt
They do, in terms of the actual shape, but they're not stupid or flexible enough to pull it tight, so they just unravel themselves. Snakes aren't string, they have a spine and ribcage to consider and have limited flexibility. Any knot they manage to tie in themselves is loose and easily slithered out of.

Source: had a snake for a few years, fascinating to watch.