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Luckily they evolved feathers and manage just fine.

• ben_w 4y ago
  They had feathers when they were dinosaurs, and they’re smaller now. I can’t usefully comment on most of the actual science in that paper, but I already had reasons to expect significant changes to the total mass of the atmosphere before reading it — the difference between today and the pre-oxygen apocalypse era (~2.4 Gy) implies at least a change of either 0.21 bar (if the oxygen came from the water) or 0.07 bar (if it all came from CO2). I have no idea what to also anticipate from geology, impacts, or other things life might do besides the GOE.
  • jameshart 4y ago
    When they were feathered dinosaurs, though, they couldn’t fly.
    • ben_w 4y ago
      Both unclear[0], and also given the end of that sentence, unimportant. [0] https://en.wikipedia.org/wiki/Archaeopteryx#Flight https://en.wikipedia.org/wiki/Archaeopteryx#Flight