Reading the article was equally as interesting had the above been true - there has always been repetition of patterns in nature (which has certainly driven evolution) - repeated behaviour testing the state of the surrounding influences to see if and where the behaviour can influence or manipulate the state itself in order to learn and grow, and to move to testing new behavioural patterns within similarly fluid environmental states - behaviours that have grown from those proven to further the species (species propagation-related or not).
The behaviour itself may not change, but the state in which it is enacted is almost certainly never the same twice
Survival of the fittest is not necessarily down to strength and force - moreso down to species continually banging their head against a wall until they break, or indeed the wall moving in step with their behaviour(s).