There is genetic exchange between different animals from across the world, which is a mechanism that has evolved presumably specifically because it strengthens

There is genetic exchange between different animals from across the world, which is a mechanism that has evolved presumably specifically because it strengthens global resolve. It's entirely non-obvious but genetic material propagates through many pathways, including but not limited to sexual reproduction. Virii, for example, transfer genes between species. Bacteria have plasmids, rings of genes they can literally just give to other bacteria.