Bonobos use a kind of syntax once thought to be unique to humans

It is funny how at least the press written about this sort of research seems to imply only humans have language and some new evidence might challenge that notion.

Really if you ever own a pet, probably any pet I bet, you find that communication in a way that is arguably a language is pretty low level stuff in the animal kingdom. And it makes sense as it is quite useful for a species to communicate things about the world. You turn your community into a meta organism: rather than continuous appendages and nerve endings you might have a meerkat a couple hundred yards observing for predators for you sharing their own senses on their own body with you through their long distance communication abilities in the form of their vocalizations or body language. Now you can solely be a meerkat and get all this information about the area without having to evolve into some lovecraftian horror with a set of eyes and ears every 100 yards.

Language is not just "communication" and not every communication is language. Bees and ants communicate information chemically, but they're not using a structured language. Dogs may growl to intimidate or yelp if they get hurt, and that surely communicates information, but whether they are using a structured language is a matter of research.