PTYS/GEOS 584

A geochemical and biological perspective on a range of topics including: early Earth and life, oxygenation of the atmosphere, the Cambrian explosion, rise of land animals, Perman gigantism, mass extinctions, green-ice-hot houses, snowball Earth and Ediacaran fauna, the rise of hominids, megafauna extinctions. GEOS is home department; course is cross-listed with GEOS/PTYS/ASTR and may be co-convened with PTYS 484. May be applied to Astrobiology minor.