Uploaded August 2022 | Updated September 2026, 1 week ago
14,000 years ago, a seasonal monsoon turned the Sahara Desert into a vast savannah, where both people and animals lived in great numbers. Today we still know very little about the people who once lived here, but a series of recent discoveries might have brought us closer than ever before to uncovering the truth.
Support me on Patreon here: patreon.com/atlaspro
For the full map find me on twitter @theatlaspro
Check out the Fall of Civilizations Podcast here: youtube.com/c/FallofCivilizationsPodcast
Sources / Further Reading:
researchgate.net/figure/Continuity-of-the-Tamanrasett-River-Cap-Timiris-giant-system-Complete-identified_fig4_283714259
researchgate.net/figure/Hydrological-context-of-Africa-Map-of-the-main-rivers-of-the-Mediterranean-West-African_fig3_283714259
researchgate.net/figure/Coastal-section-of-the-Tamanrasett-paleoriver-a-PALSAR-radar-observation-of-the_fig1_283714259
cambridge.org/core/books/abs/cambridge-world-history/early-agriculture-in-subsaharan-africa-to-c-500-ce/220E93A073A94470D419C3C56D72E0E9
theguardian.com/science/2015/nov/10/ancient-river-network-discoverd-buried-under-saharan-sand
nature.com/articles/ncomms9751.pdf?origin=ppub
khanacademy.org/humanities/big-history-project/agriculture-civilization/first-cities-appear/a/the-origin-of-agriculture-in-africa
bbc.com/news/world-13522957.amp
khanacademy.org/humanities/big-history-project/agriculture-civilization/first-cities-appear/a/the-origin-of-agriculture-in-africa
researchgate.net/publication/248819320_Cap_Timiris_Canyon_A_Newly_Discovered_Channel_System_offshore_of_Mauritania
https://www.sahistory.org.za/article/nile-river-and-its-influence-settlement
genomebiology.biomedcentral.com/articles/10.1186/s13059-018-1410-8
sciencedirect.com/science/article/abs/pii/S0264817205000802
asu.cas.cz/~jklokocn/AJG_2017_Sahara.pdf
https://archive.ph/20151111221526/http://gizmodo.com/a-vast-river-network-once-crisscrossed-the-sahara-1741984951
upload.wikimedia.org/wikipedia/commons/b/b3/Mauritania_Topography.png
en.wikipedia.org/wiki/African_humid_period#/media/File:Journal.pone.0076514.g004.png
cambridge.org/core/journals/quaternary-research/article/abs/megalakes-in-the-sahara-a-review/7515BC9AAFE40606D3FC30C9D0C7D9D7
jstor.org/stable/j.ctvh1dh5w
pnas.org/doi/pdf/10.1073/pnas.1012231108
academic.oup.com/mbe/article/28/9/2603/1011779
sciencedirect.com/science/article/abs/pii/S0264817205000802
historyofyesterday.com/the-mysterious-people-that-lived-in-the-green-sahara-f993fe30a9d9
sciencedirect.com/science/article/abs/pii/S0264817205000802
core.ac.uk/download/pdf/52774858.pdf
jstor.org/stable/j.ctvh1dh5w
researchgate.net/publication/283714259_African_humid_periods_triggered_the_reactivation_of_a_large_river_system_in_Western_Sahara
sciencedirect.com/science/article/abs/pii/S0277379121005254
"Deliberate Thought" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0 License
creativecommons.org/licenses/by/4.0
"Silver Flame" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0 License
creativecommons.org/licenses/by/4.0
14,000 years ago, a seasonal monsoon turned the Sahara Desert into a vast savannah, where both people and animals lived in great numbers. Today we still know very little about the people who once lived here, but a series of recent discoveries might have brought us closer than ever before to uncovering the truth.
Support me on Patreon here: patreon.com/atlaspro
For the full map find me on twitter @theatlaspro
Check out the Fall of Civilizations Podcast here: youtube.com/c/FallofCivilizationsPodcast
Sources / Further Reading:
researchgate.net/figure/Continuity-of-the-Tamanrasett-River-Cap-Timiris-giant-system-Complete-identified_fig4_283714259
researchgate.net/figure/Hydrological-context-of-Africa-Map-of-the-main-rivers-of-the-Mediterranean-West-African_fig3_283714259
researchgate.net/figure/Coastal-section-of-the-Tamanrasett-paleoriver-a-PALSAR-radar-observation-of-the_fig1_283714259
cambridge.org/core/books/abs/cambridge-world-history/early-agriculture-in-subsaharan-africa-to-c-500-ce/220E93A073A94470D419C3C56D72E0E9
theguardian.com/science/2015/nov/10/ancient-river-network-discoverd-buried-under-saharan-sand
nature.com/articles/ncomms9751.pdf?origin=ppub
khanacademy.org/humanities/big-history-project/agriculture-civilization/first-cities-appear/a/the-origin-of-agriculture-in-africa
bbc.com/news/world-13522957.amp
khanacademy.org/humanities/big-history-project/agriculture-civilization/first-cities-appear/a/the-origin-of-agriculture-in-africa
researchgate.net/publication/248819320_Cap_Timiris_Canyon_A_Newly_Discovered_Channel_System_offshore_of_Mauritania
https://www.sahistory.org.za/article/nile-river-and-its-influence-settlement
genomebiology.biomedcentral.com/articles/10.1186/s13059-018-1410-8
sciencedirect.com/science/article/abs/pii/S0264817205000802
asu.cas.cz/~jklokocn/AJG_2017_Sahara.pdf
https://archive.ph/20151111221526/http://gizmodo.com/a-vast-river-network-once-crisscrossed-the-sahara-1741984951
upload.wikimedia.org/wikipedia/commons/b/b3/Mauritania_Topography.png
en.wikipedia.org/wiki/African_humid_period#/media/File:Journal.pone.0076514.g004.png
cambridge.org/core/journals/quaternary-research/article/abs/megalakes-in-the-sahara-a-review/7515BC9AAFE40606D3FC30C9D0C7D9D7
jstor.org/stable/j.ctvh1dh5w
pnas.org/doi/pdf/10.1073/pnas.1012231108
academic.oup.com/mbe/article/28/9/2603/1011779
sciencedirect.com/science/article/abs/pii/S0264817205000802
historyofyesterday.com/the-mysterious-people-that-lived-in-the-green-sahara-f993fe30a9d9
sciencedirect.com/science/article/abs/pii/S0264817205000802
core.ac.uk/download/pdf/52774858.pdf
jstor.org/stable/j.ctvh1dh5w
researchgate.net/publication/283714259_African_humid_periods_triggered_the_reactivation_of_a_large_river_system_in_Western_Sahara
sciencedirect.com/science/article/abs/pii/S0277379121005254
"Deliberate Thought" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0 License
creativecommons.org/licenses/by/4.0
"Silver Flame" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0 License
creativecommons.org/licenses/by/4.0









![Even MORE Islands That Arent Islands
Today we take another look at isolated environments to learn how islands can arise even when surrounded by vast seas of desert!
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Sources / Further Reading:
Sierra de la Laguna
https://www.oneearth.org/ecoregions/sierra-de-la-laguna-pine-oak-forests/
https://en.unesco.org/biosphere/lac/sierra-la-laguna
https://www.worldwildlife.org/ecoregions/nt0227
https://tosea.net/the-sierra-de-la-laguna-biosphere-reserve-bajas-island-in-the-sky/
https://www.jstor.org/stable/41424739
https://bashanfoundation.org/contributions/Ortega-A/ortegaoakpine.pdf
https://www.researchgate.net/profile/Mbi-Honey-Escandon/publication/230709948_Phylogeographic_patterns_of_differentiation_in_the_Acorn_Woodpecker/links/563273e608ae242468d9f817/Phylogeographic-patterns-of-differentiation-in-the-Acorn-Woodpecker.pdf
https://www.researchgate.net/figure/Cape-Region-vegetation-community-type-The-Sierra-La-Laguna-Biosphere-Reserve-SLLBR_fig1_342638855
https://www.researchgate.net/figure/Distribution-of-forest-types-in-the-Sierra-de-la-Laguna-Biosphere-Reserve-in-the-southern_fig1_237151825
https://amphibian-reptile-conservation.org/pdfs/Volume/Vol_17_nos_1-2/ARC_17_1-2_[General_Section]_57-142_e326_high_res.pdf
https://lacgeo.com/sierra-laguna-biosphere-reserve
https://www.oneearth.org/ecoregions/sierra-de-la-laguna-dry-forests/
McMurdo Valleys
https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2019JG005153
https://link.springer.com/article/10.1007/s00248-013-0296-y
https://www.mdpi.com/2079-7737/3/3/466
https://www.cambridge.org/core/journals/antarctic-science/article/abs/lithic-microbial-ecosystems-of-antarcticas-mcmurdo-dry-valleys/0EFA8DDEF1D10D6A0B3C87BD2537E31F
https://www.researchgate.net/figure/Diatom-species-confirmed-from-the-McMurdo-Dry-Valleys-authorship-and-year-and_tbl1_237448827
https://ictar.aq/dry-valleys-biology/
https://www.mdpi.com/1424-2818/13/10/506
https://mcm.lternet.edu/content/biogeography-and-genetic-diversity-terrestrial-mites-ross-sea-region-antarctica
https://pdfs.semanticscholar.org/a162/8af6425c20e37b20d0137317c64b8c689b38.pdf
https://zslpublications.onlinelibrary.wiley.com/doi/abs/10.1111/j.1469-7998.1995.tb02723.x
https://www.mdpi.com/1424-2818/12/12/450
https://www.mdpi.com/1424-2818/13/10/506
https://www.mdpi.com/2073-4425/14/3/606
https://onlinelibrary.wiley.com/doi/abs/10.1111/zsc.12490
https://communities.springernature.com/posts/when-were-the-mcmurdo-dry-valleys-of-antarctica-last-wet
https://ir.canterbury.ac.nz/server/api/core/bitstreams/8cb497c6-7f74-4e4a-b048-8e9fa23695fe/content
https://glaciers.pdx.edu/fountain/MyPapers/FountainEtAl2014_LandscapeAtRisk_DryValleysAntarctica.pdf
https://journalofbiogeographynews.org/2021/06/30/history-and-genetic-diversity-of-the-most-common-antarctic-lichens/
https://ir.canterbury.ac.nz/server/api/core/bitstreams/8cb497c6-7f74-4e4a-b048-8e9fa23695fe/content
https://onlinelibrary.wiley.com/doi/full/10.1111/jbi.14101
https://asm2015.lternet.edu/content/taxonomic-and-ecological-diversity-mcmurdo-dry-valley-tardigrades/index.html
https://www.polartrec.com/expeditions/tough-tardigrades/journals/2017-01-09
https://www.sci.muni.cz/CPR/LP222012/LP-2_2-6.htm
https://www.sciencedirect.com/science/article/pii/S266651582200018X#:~:text=There%20are%2012%20species%20of,et%20al.%2C%202017).
https://www.researchgate.net/figure/Breeding-distribution-of-brown-Stercorarius-lonnbergi-and-south-polar-skuas-S_fig1_284067959
https://www.researchgate.net/figure/McMurdo-Dry-Valleys-Antarctica-Labeled-areas-represent-study-locations-and-major_fig2_264038744
https://link.springer.com/article/10.1007/s00300-017-2127-y
https://www.zobodat.at/pdf/Ent-Mitt-Zool-Mus-Hamburg_10_0043-0056.pdf
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10048765/
https://www.researchgate.net/figure/a-Distribution-of-springtail-species-shown-as-coloured-dots-with-ellipses-indicating_fig1_369438305
https://www.researchgate.net/figure/The-Onyx-river-flowing-westward-between-the-Asgaard-and-Olympus-Ranges-from-the_fig2_276158257
https://environments.aq/publications/diversity-of-antarctic-lakes-ponds-and-streams/
SEE PINNED COMMENT FOR SOURCES BEHIND THE DHOFAR MOUNTAINS Even MORE Islands That Arent Islands](https://i.ytimg.com/vi/u-Qn1ThNv9o/mqdefault.jpg)
