The rapid rise of marine planktonic algae 659-645 million years ago (Cryogenian period), between the Sturtian and Marinoan ‘snowball Earth’ glaciations, created food webs with more efficient nutrient and energy transfers, driving ecosystems towards larger and increasingly complex organisms, according to new research. Cryogenian Earth. Image credit: NASA. The study, published this week in the journal Nature, involved an international team of...
