It's like this one time, I needed to bust through a wall, and I happened to be the only guy there with a 16 lbs sledgehammer... so badabing badaboom I was like the survival of the biggest cojones guy.
I suppose that all the other guys went after you trough the wall, then this is not the case
Imagine, for example a forest with a species of bird that eat insects living in the threes. There are a lot of insects and the colony of birds grows fast because there is plenty of food for all of them. But as the birds become more and more numerous it arrives the year when, at the middle of the season, they have eaten all the insects that were at the threes except those that are hidden in the holes of the threes. There are some birds that have a little longer beak than the others. They can reach the insects inside the holes. All the others die. They survive and transmit his characteristic longer beak to their descendants.
It was a coincidence that they had a longer beak, but it was that what saved them, condemning the others to disappear.
There are a lot of examples to say and the thing is always fortuitous. Is the nature who choose who survives and who don’t, not the individuals efforts to adapt themselves to better fit with the environment.
Another thing. You should write "the biggest c**o**s guy", or so.