Rattling Around

Because we are so very tolerant...
Oh no, I certainly don't mean "allowing or respecting the beliefs or behavior of others"! Virtually all humans are intolerant of at least some others, and far too many disrespect (or even hate) those of other tribes, cults, races, sexual preferences, nationalities, "foreign" language speakers, religions, accents, environmental practices, political parties, colleges, styles of dress, mode of communication, food habits, odors, method of dancing...
No, what I mean is "able to withstand or endure adverse environmental or physiological conditions". Yep, humans can and do live everywhere, no matter how bad it is. We are much better at this than any other species (even roaches and rats). 110 degrees hot, or -40 degrees cold (F, of course); mountain tops or desert flats; tundra or jungles; prairies or cities; marshes or glaciers. We even have people living in space (well, in the ISS), and have gone to the moon (we really did, that was no hoax...). We are so good at living in bad conditions, and continuing to breed heartily, that we have had huge impacts on world habitats. Vast areas have been denuded of trees, burned as fuel, resulting in loss of topsoil or baking of lateritic soil into brick. We are turning more and more of the Earth into desert. We live crushed together in huge cities, where there is no ability to locally gather water or grow food, becoming totally dependent on food and water flowing in from other regions. Even when there are terrible diseases, famine and conflict, we keep producing more and more babies, ensuring that the next generation will have even more suffering. We live on the slopes of active volcanoes, in flood zones, in coastal areas subject to hurricanes and tsunamis, on fault zones, in areas subject to fire and mudslides, and in regions peppered with land mines. Our medical services keep alive people with non-functioning organs until they can receive new transplants. Blind folks can still get food, crippled folks can still get around, even stupid people can get elected to public office. Have you seen BladeRunner? That's what cities will be like, oh so soon. People live in cardboard boxes, and in shacks with no heat. They poop in their water supply and then drink from it (yeah, some die, but there are always more being born). Even with terrible wars and genocide, the human population continues to grow. Even with World War 1 and the 1918 flu epidemic, the population was greater by the end of 1919 than any previous year in history. We're darn good at not only surviving, but thriving and breeeeeeeding.