Paleo bio Gaia and dinos
About the imperiled tuatara, a dinosaur-era reptile, from climate
That dino is more proof of Gaia--the idea of a temperature "range".
That means biological modulation of temperature where the feedback
exists--otherwise without it there is extremes cold or warm and
conditions where sexual unbalance leads to better surviving condition
on the edges of the feedbacks, probably by means of population
control and differences in adaption and behavior by sex.
It is modulation then, modulation now, not chaos then, chaos now.