CDOQ

Written text is read left to right or right to left or top to bottom. Why aren't there languages which read bottom to top? 

Why did humans develop ability to communicate with a language and not any other life form? How did humans develop emotion and not any other life form? How come we have the most developed brain of all life forms? How did countries, societies, cities, etc. develop? Why are the male/female characteristics common among all life forms?

What is the relationship between language and genetics? Why language evolved differently in different regions of the world?