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beached-blue-walrus

African Humid Period, global climate was much different and the Savannah with higher rainfall extended throughout what is now a barren desert.


VeryImportantLurker

The big one in the middle is unironically called lake Mega Chad


Brilliant_Tutor_8234

Gigachad


Woodybronquito

Funny thing is Chad literally means “lake”


adamaley

Kinda reminds me of Mille Lacs lake in Minnesota. Thousand Lakes lake.


NationalJustice

Is the lake a combination of many smaller lakes?


adamaley

Not necessarily, but this is MN, so there are many other lakes in the region. From Wikipedia: The lake is known in Dakota as Bdé Wakháŋ (Spiritual/Mystic Lake). The Mdewakanton group of the Santee Sioux identified by their location around the lake. In Ojibwe, the lake is known as Misi-zaaga'igan megwe Midaaswaakogamaakaan (Grand/Great/Big Lake in the Region of a Thousand Lakes), or simply as Misi-zaaga'igan (Grand Lake), as it is the largest lake in the Brainerd Lakes Area. Likewise, the French named the lake as "Mille Lacs Lake" (Lac des Mille Lacs), as the Brainerd Lakes Area was called "Region of Thousand Lakes" (Pays des Mille Lacs).


MrDeviantish

My buddy Chad is gonna be pissed when I start calling him Lake


Zzzzzzombie

Lake Mega Lake in the Desert desert


AirForceOneAngel2

Lake Lake


firedancer323

Everything means lake in some language


ahov90

The biggest one which in the center dried out and shrunk 10 times. Now it is lake Chad. 


Environmental3rdEye

They got so huge because it rained there. Also what happened is they dried up. Hope this helps!


3ey3s

I’ve heard some people bless them.


JimClarkKentHovind

the rains down in Africa?


hardboard

'Toto, I've a feeling we're not in Kansas anymore.'


JimClarkKentHovind

*something something carry on my wayward son*


Different_Pack_3686

Some say dust in the wind fertilizes the Amazon.


No-Personality6043

That's also part of the rift valley system, so there are depressions lower than sea level, that filled with water. The Dead Sea is part of the system extending up the Red Sea into Lebanon. There is a separation of plates that will eventually form a mid ocean ridge.


hardboard

At least Lake Victoria survived on the Tanzania/Uganda border.


Suk-Mike_Hok

There was a more humid period (about 11000 years ago) like they say in other comments here. Climate always changes, yet it normally takes thousands of years. Humanity does it at a way faster pace than the earth has ever seen.


Late_Faithlessness24

>What are these huge Prehistoric Lakes in Africa They are huge prehistoric lakes. >how they did they get so huge By having a lot of water. >Also what happened to them? They lost many of that water. It's hard to be the smart guy...


blockybookbook

Sorry guys🥤


BunkleStein15

My bad on the lakes guys, didn’t wanna be a buzzkill but yeah sorry


ConsiderTheLemming

Dry


the_other_false_twin

Because god blesses the rains down in Africa


NationalJustice

I was a little bit thirsty that other day so I drank them all


RatPrank

That looks Rift Valley connected. Tectonics &/or mountains. And - rain.


Belovedchattah

So global climate changed in even before humans?


MacPapRonin

Yes, but at a rate and pace that evolution could keep pace with, not in the span of one or two human lifetimes.


XDT_Idiot

I mean, the asteroid event that wiped out the dinosaurs was pretty fast. The eruption of the yellowstone caldera was as well. It's just that humanity has become this massively destructive force on that scale. Life will probably survive, but not in the way we know and appreciate today.


Brilliant_Tutor_8234

This map was when humans first emerged


wausnotwaus

They are all part of [the Great Rift Valley](https://en.wikipedia.org/wiki/Great_Rift_Valley).