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This is a follow-up question to Why do neurons die so quickly (relative to other cells) when deprived of oxygen?.
I'm particularly interested in the case of reptiles, octopuses, and other invertebrates. Could it be that mammalian neurons are especially oxygen-demanding compared with the neurons of other animals?
Medically, recovery of brain function after 3 minutes of oxygen deprivation at body temperature is rare.
Further down here in 1 it indicates that at lower temperatures the time can be much longer. At 13C, the record is 80 minutes for people. Animals cooled to 0C have a record of recovery of three hours! Not sure how much like themselves they feel after that though...
