Over at Pharyngula, PZ has a nice story about how the Doushantuo fossils (example on right), thought to be cleavage-stage animal embryos from 580 mybp, may in fact be fossilized bacteria (example on left). Check it out.
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Over at Pharyngula, PZ has a nice story about how the Doushantuo fossils (example on right), thought to be cleavage-stage animal embryos from 580 mybp, may in fact be fossilized bacteria (example on left). Check it out.