نظرية التطور .. من البكتيريا للإنسان - الجزء الثاني
المصادر https://en.wikipedia.org/wiki/Timeline_of_glaciation https://www.youtube.com/watch?v=S9QJMpJ9tD0 https://en.wikipedia.org/wiki/Uranium%E2%80%93lead_dating https://www.astronomy.com/science/asteroid-dust-found-at-chicxulub-crater-confirms-cause-of-dinosaurs-extinction/ https://en.wikipedia.org/wiki/Extinction_event https://en.wikipedia.org/wiki/Echinerpeton https://en.wikipedia.org/wiki/Dimetrodon https://en.wikipedia.org/wiki/Procynosuchus https://www.youtube.com/watch?v=ukJfEt0Jh6E https://www.ck12.org/book/ck-12-human-biology/section/7.2/ https://en.wikipedia.org/wiki/Plesiadapiformes https://en.wikipedia.org/wiki/Aegyptopithecus https://www.youtube.com/watch?v=fZSE0BicoRs https://en.wikipedia.org/wiki/Proconsul_(mammal) https://natmus.humboldt.edu/exhibits/life-through-time/visual-timeline/neogene-period