Language - An Innate human trait?

Ever since Noam Chomsky proposed the idea of universal grammar and humans having an innate knowledge of language, linguists have debated whether language was something that humans were already genetically pre-destined to have or something learned from society. Recently, I came across a fascinating article from Atlas Obscura (you can read the full article here). The article covered the story of the development of Nicaraguan Sign Language or NSL. What’s really fascinating about NSL is the fact that it was a spontaneous language. When the Nicaraguan government first attempted to open a school for deaf children, they focused on teaching the children Spanish and lip-reading rather than teaching sign language. However, when the students interacted among themselves, they communicated using their own sign language, and over time, this developed into a fully-fledged sign language with grammar and syntax without any guidance from external sources. This got me thinking about how language originated and the effect it had on our evolutionary success. Clearly, there was some innate intuition for the students to develop a way of communicating - they didn’t try to mimic the lip movements they would have been exposed to when lip-reading Spanish. This also lines up with communication in other species - other living beings aren’t taught how to communicate, rather they are simply born with the innate knowledge of how to communicate, albeit at a much more primitive level than when compared to humans. Additionally, every society that we have discovered has developed some kind of language, with grammar and syntax. Even remote tribes that haven’t had any contact with the outside have still developed a language, suggesting that there must be something innate about language. Further research will hopefully help us uncover these secrets.