I'm sure, due to all my hyperbole and ultimatums, you are well into Elizabeth Kolbert's The Sixth Extinction, but if you haven't finished, don't get discouraged, as the book has a slightly upbeat ending-- though the evidence is nearly incontrovertible that not only are we inadvertently killing off species at a unprecedentedly rapid rate -- with climate change, ocean acidification, and a reshuffling of native and invasive species -- but there was probably no time in the Anthropocene when humanity was "one with nature,"as the "pulse" of colonization of primitive people's across the globe went hand in hand with a devastating loss of super-awesome mega-fauna -- nothing makes more more melancholy than the list of animals early North American natives hunted to to extinction (glyptodonts, cave bears, dire wolves, wooly mammoths and rhinoceros, giants beavers, giant sloths, giant camels and llamas, American lions, American cheetahs, etc. etc.) . . . and not only that but we also wiped out our main humanoid competition, the neanderthals, but due to the "leaky-replacement hypothesis" and some very adventurous swinging souls, the good news is that present day homo sapiens posses 1-4 % neanderthal genes -- so the neanderthals aren't totally extinct, they survive inside of us . . . and while there may be no way to stop this sixth extinction, Kolbert admires the folks that are trying, as these are the kind of people who will "give a Hawaiian crow a hand-job," stick their arm up a Sumatran rhinos anus, and cryogenically freeze and preserve the genes of many species just in case we can resurrect them in the future . . . but it all may be too little, too late, but perhaps next time around, in a few million years when creatures have had a chance to evolve diversely once again -- if we are still in the picture-- we will do a better job of it.