The History of Life on Earth - Crash Course Ecology #1

With a solid understanding of biology on the small scale under our belts, it's time for the long view - for the next twelve weeks, we'll be learning how the living things that we've studied interact with and influence each other and their environments. Life is powerful, and in order to understand how living systems work, you first have to understand how they originated, developed and diversified over the past 4.5 billion years of Earth's history. Hang on to your hats as Hank tells us the epic drama that is the history of life on Earth. Like CrashCourse on Facebook! http://www.facebook.com/YouTubeCrashCourse Follow CrashCourse on Twitter: http://www.twitter.com/TheCrashCourse Table of Contents 1) Archaean & Proterozoic Eons 01:53 a) Protobionts 03:54 b) Prokaryotes 04:18 c) Eukaryotes 06:06 2) Phanerozoic Eon 06:42 a) Cambrian Explosion 06:49 b) Ordovician Period 07:36 c) Devonian Period 07:48 d) Carboniferous Period 08:13 e) Permian Period 09:10 References and licenses for this episode can be found in the Google document here: http://dft.ba/-2zRD crashcourse, biology, ecology, hank green, history, life, human, earth, RNA, genetic material, protobionts, DNA, prokaryote, archaea, archaean, eon, proterozoic, era, period, epoch, fossil record, atmosphere, geologic, time, cyanobacteria, photosynthesis, oxygen revolution, change, environment, eukaryote, endosymbiosis, mitochondria, plastid, algae, cambrian explosion, diversity, animal, evolution, phanerozoic, phyla, ordovician, plant, carboniferous, fossil fuel, system, permian, pangaea, gymnosperm, archosaur, dinosaur, species, extinction, event, asteroid, niche, competition, resource, jurassic, angiosperm, insect, coevolution, bird, mammal, flora, fauna, relationship. Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse