but humans came up with a way to not have to crap in the yard... we invented toilets..... no animal has ever invented a thing. yes some use "tools" like monkeys use sticks for stuff... but have you ever seen an animal shape anything or form anything to make it more useful.. no... monkey's don't make fishing poles or spears... they use only what they have because it's instinct. they don't try to improve what they have either...