Browsing The Patten Lecture Series by Author "Knoll, Andrew H."

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  • Knoll, Andrew H. (Indiana University William T. Patten Foundation, 2010-02-09)
    Shells, bones, tracks, and trails record a history of animal evolution more than 600 million years long. Earth, however, is some four and a half billion years old. What kinds of life characterized our planet's youth and ...
  • Knoll, Andrew H. (Indiana University William T. Patten Foundation, 2010-02-11)
    Is there, or was there once, life on Mars? Debate about martian life remains unresolved, but over the past decade, unprecedented observations have enabled us to address key astrobiological questions in new ways. This lecture ...

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