The life that lives around the deep sea vents live at a pressure level that would make eukaryotes explode. How is it that there are creatures living down there? They apparently are not eukaryotic life forms so what are they?
All of the multicellular animals you see around deep sea vents are eukaryotes.
What really gets a person is the
difference in pressure. This is a big problem for us because we need air spaces within our bodies. No such problem for aquatic life. The pressure between the outside of their bodies and the inside is the same, so no pressure differences. This prevents the body from being crushed.