Is mankind here to stay or are our days numbered? Will we fare better than our close and distant relatives such as Neanderthals and dinosaurs who ruled the earth before us? Is man at the beginning of his journey or fast approaching the end? Might that end come about within the next century? Being the unquestionable masters of Earth, we humans have a way of taking our own existence for granted. But being a comparatively young species, maybe we shouldn't be so sure about our own survival, especially considering that 99.9 percent of all species that ever walked the earth have gone extinct. In the form of a Top-10 list of doomsday scenarios, Last Days of Man is a scientific examination of the disasters that have the capacity to annihilate the human race-and it's not just the usual threats from nuclear weapons, climate change, and meteorite impacts. There are a number of lesser-known but much more probable risks to humanity.