Language is unique because?

Researchers from Durham University explain that the uniquely expressive power of human language requires humans to create and use signals in a flexible way. They claim that his was only made possible by the evolution of particular psychological abilities, and thus explain why language is unique to humans.

Source: https://royalsociety.org/news/2013/language-unique-humans/

Languages can differ in many ways. They may use different sounds, they may make words in different ways, they may put words together to form a sentence in different ways, and that's just for starters! ... Dialects of a language may vary in terms of accents, the words people use, the way people structure their speech.

Source: https://lingroadshow.com/all-about-language/languages-of-the-world/how-can-languages-differ/

You 2

It depends on what you believe, if you’re christian that you would have been told that the first humans were created by god and that we’re all decedent's from adam and eve but scientist say otherwise