There are bacteria that will happily live in 130C water ( under pressure) at the bottom of the ocean, and others that are quite comfortable at sub zero temperatures all the time, and if you look at the assorted Tardigrades, that can survive being frozen, boiled, irradiated with enough radiation to kill all other life, exposed to vacuum for years in space, and come back to life, even after you have taken them, dried them out, stuck them down with a drop of superglue to a metal plate, sputtered a gold contrast coat onto them and then placed in a SEM to image them at high resolution.
The ant almost made it all the way through, it at least was still trying to break free when the gold sputtering was applied, as evidenced by the cracks in the coat in scanning.