Embryos Tell Story Of Earths Earliest Animals

Much of what scientists learn about the evolution of Earth's first animals will have to be gleaned from spherical embryos fossilized under very specific conditions, according to a new study by Indiana University Bloomington and University of Bristol researchers in this week's Proceedings of the National Academy of Sciences.

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<p><a href="http://www.physorg.com/news63864705.html">Embryos Tell Story Of Earths Earliest Animals</a></p> <p>Much of what scientists learn about the evolution of Earth's first animals will have to be gleaned from spherical embryos fossilized under very specific conditions, according to a new study by Indiana University Bloomington and University of Bristol researchers in this week's Proceedings of the National Academy of Sciences. </p>