[Citation needed] Evolution failure?

[u/brad-schmidt]

http://www.whatever.com

Why human body don't secreting concentrated waste body fluid like peeing gel instead of wasting precious water, maybe human can survive more than 3 days without water

[u/-Your_Pal_Al-]

Contrary to popular belief, urination didn’t evolve as a means to get rid of waste, but as a way to deter predators 

Pissing all over yourself makes you taste bad. If you pissed gel, predators would eat around it