Details of the dynamic in how different types of galaxies and their interplay emerges frompopulation III stars, alongside evidence speaking for their past existence. But foremostly, a long listof mainly astronomical evidences of which I have identified that they support the hypothesis thatdark matter annihilates has been created upon thorough search for predicted instances in which suchannihilation signs should and indeed do show up, on the scale of large planets, stars, and galaxies.Several other unexplained or mis-understood but thought to already have been explainedphenomena are covered as well and dark matter annihilation should contribute partially or entirely,depending on the case, to their qualitative explanation. The paper however does not cover reasonsfor why cosmic web pressure between mainly black holes of galaxies represents the concretemechanism that describes at least a majorly contributing part of the dark energy phenomenon thateventually leads to a big crunch.