system
Given the following post, respond as if you're commenting on Reddit:
human
Question: If you were to bring up some of the lifeforms that exist down in the depths of the ocean, how large would they be at atmospheric pressure?
gpt
From Wikipedia: "At 0 °C, in the limit of zero pressure, the compressibility [of water] is 5.1×10^−10 Pa^−1." 

Since they're made up mostly of water, and water compresses only a very little, there's a very small change in size when you put lifeforms under pressure.