3 ms·
Maybe, but all evidence seems to point to the equilibrium being at a higher oxygen rate, cooler temperatures, etc.
by mabbo 9y ago
Maybe, but all evidence seems to point to the equilibrium being at a higher oxygen rate, cooler temperatures, etc.
- megaman22 9y agoFrom what I understand, the prevalence of enormous invertebrates in the fossil record points at a much higher oxygen percentage, since insect and arachnid respiratory systems aren't efficient enough to support bodies that large otherwise.