Talk:Planet 4546B/@comment-68.42.118.52-20161105004838/@comment-68.42.118.52-20170429014237

@NickHowler337 To answer your question, the Lava Larva is likely a boneless annelid similar to that of a common leech or worm in which its entire body is purely muscle. (in fact, it should be called Lava Leech) Boneless organisms like squids can survive in such extreme pressures since they're not constricted by skeletons and have an equalized body pressure. In other words, the pressure inside their bodies is the same as the outside environment.

The reason humans can't survive in these depths is because our bodies are pressurized due to the low pressure of the atmosphere. This is why when you get a cut, your body begins to depressurize and you "bleed" as a result. Once our bodies reach the depth that exceeds this pressure, the "bleeding" process reverses. The pressure on the inside is now lower than the pressure on the outside, which makes your body like a bubble that wants to pop.

To simplify, Lava Larvae can survive in the Inactive Lava Zone because their bodies are boneless and their internal pressure is the same as the surrounding water.