Monday, July 25, 2016

Before animals, evolution waited eons to inhale

Time to smash the beaker when thinking about oxygen concentrations in water, at the time when animal life first evolved. Oceans stacked oxygen here and depleted it there, as a new novel model demonstrates. It may well toss a wrench into the way we have dated the evolution of the earliest animals.

from Oceanography News -- ScienceDaily http://ift.tt/2a9HHVA
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