system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How can deep sea creatures exist at the bottom of the ocean? How does the pressure not crush them like it would us?

I just need to know, but know like I'm five.
gpt
They evolved specifically for that pressure, and can't live anywhere else. Their bodies contain very little gas and contain a lot more water. Similar to taking a water balloon to the bottom of the ocean.