Earlier quoted context omitted.
>Beavers build these dams to keep the water level at a certain height. My friend, I think you are implying intention where there is none. It's true that the effect of beaver dam-building is advantageous, but there was never any deliberation about it on the beavers part. It's a curious case of effort without decision . One can easily think of a situation where a beaver might actually do better to not build a dam - but…
Sex seems a lot more simple than building a dam though. I mean, how does the Beaver even know this kind of stuff? Is it in its genetic material, or is it taught by its parents? Either way, fascinating stuff.
Now, the fun part, is that dogs, through similar genetic iterations, have evolved to love catching said ball and bringing it back to us.
Life is fun.