A Brief History of Life: When Life Exploded

By Spiral Education 30 Aug 22:23
SciShow science Hank Green education learn Phanerozoic eon Paleozoic era Cambrian Explosion predation molluscs chordates vertebrates Ordovician Silurian Devonian Age of Fishes placoderms tetrapods Carboniferous period arthropods amniotic egg Permian Dimetrodon Edaphosaurus Great Dying Siberia traps Vesuvius Krakatoa Pangea archosaurs Mesozoic Display all tags
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