How did life survive the most severe ice age? A team has found the first direct evidence that glacial meltwater provided a crucial lifeline to eukaryotes during Snowball Earth, when the oceans were cut off from life-giving oxygen, answering a question puzzling scientists for years.
Source: Mystery of how early animals survived ice age: New findings further our understanding of extreme climate change and evolution — ScienceDaily
New findings challenge the long-standing idea that multi-celled animals evolved from a single-celled ancestor resembling a modern sponge cell known as a choanocyte.
Source: How multi-celled animals developed: Evolutionary discovery to rewrite textbooks — ScienceDaily
About five hundred million years ago, animals suddenly developed eyes and limbs—and possibly an inner life.
Source: The Explosive Evolution of Consciousness – WSJ