Talk:Day 231-235/Day 234/@comment-93.86.127.16-20160130133405/@comment-3582098-20160208030933

Creatures that exist in hot conditions aren't necessarily impervious to fire; most likely these fish simply have a very high natural heat tolerance and a fireproof outer layer that insulates their innards from the much hotter lava around them. Considering they are like miniature meteorites (in that they have layers of semi-molten lava around their bodies) likely they have a solid core of hardened iron (which has a melting point of 1,538°C) around their bodies and have hyper-efficient circulation systems, allowing them to perform a form of water cooling to keep themselves much cooler internally than externally. Further, lava is only between 700°C to 1,250°C, which isn't actually that hot in the grand scale of hot things. The inner core of a candle flame (that light blue part) is     1400°C, for example.