Trivially, every species is in competition with every other for finite resources to use to perpetuate their gene line. > Look at you, your legs, your nose, you

Trivially, every species is in competition with every other for finite resources to use to perpetuate their gene line. > Look at you, your legs, your nose, your fleshy hands, exposed ears ands eyes, soft belly. All soft targets, easily killed, unlike a snake, rhineceros or any animal with at least claws or fangs. Right. Which is why we have complex language and hands capable of fine motor skills and an innate ability to band together in groups to fight off everything else. Humans doubled down on the "big complex brain" strategy, then doubled again, then kept doubling until we were making marks to keep track of who owned how many cattle. It was a very short step, evolutionarily speaking, from that to the smallpox vaccine, Neil Armstrong, and the Eroica symphony. It was hardly a step at all, in fact. Our brains were so successful that we didn't die of not having claws, fangs, or the ability to reliably have multiple offspring at once. In fact, human heads are pushing up on the size limits of what women can safely push out of the birth canal without endangering either mother or child. In our way, our competitive strategy is just as specialized as a poison dart frog's: Whereas the frog is too toxic to eat, we're too smart to take down. The fact a lot of our smarts comes down to the ability to cooperate within the species does not negate the fact we're competing with other species. Not so much now, perhaps, but I'd consider our competition with the polio virus to be rather heated. (Fairly one-sided, but heated.)