Humans are more co-operative than bees and ants. Bees and ants are very co-operative, sure, but they only co-operate within their own colonies. By contrast, humans will co-operate with complete strangers with which they have nothing in common other than their shared humanity. Humans will help other humans who they have never met before, will never meet again, share no common language with, basically any number of differences you can throw in there, humans will still co-operate. When it comes to the scope, scale and sophistication of co-operation, no other animal comes close to humans.

There is also still a competitive instinct in humans, for sure, but the drive to co-operate is almost always stronger than the competitive urge. This is why all of our sports have rules, why we have laws to prevent unfair competition, and why we consider selfishness to be a negative trait.