The bare mininum intake of water should be at least 64 oz. Now if you live in hotter states like me who live in AZ in the summer months you will want to increase that intake to about 96-128 oz per day. Of course your activity level and how much you spend outside will be a factor as well.
Neanderthals were a separate species from modern humans, and became extinct (because of climate change or interaction with modern humans) and were replaced by modern humans moving into their habitat between 45,000 and 40,000 years ago.
Some would say Neanderthals didnât go extinct, because everyone alive today whose ancestry is from outside of Africa (where Neanderthals never lived) carries a little bit of Neanderthal DNA in their genes.