A pink sponge, photographed at an aquarium today, is not unlike one of the first life forms that appeared in the Precambrian era. Photograph by Joel Sartore, National Geographic Photo Ark The ...
Paleontologists now know that the Precambrian actually did swarm with ... that distinguish eukaryotes from bacteria and other life-forms is how their cell membranes are constructed.
A team of international researchers has challenged the long-held belief that complex life forms first emerged on ... In a study published in Precambrian Research Monday by scientists from Cardiff ...
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