Sixth extinction. Unnatural story

What is common between American mastodont, a winged gagga and ammonite? And between the Panamanian golden frog, shedding corals and Sumatran tigers? In fact, the answer is simple: the first three types have already died out, the second three are on the verge of extinction right now. In the history of our planet there were periods when it was subjected to changes so strong that it sharply reduced the variety of life. Five such periods with the most catastrophic consequences are called a large five. But many scientists, observing environmental changes, indicate that the sixth extinction occurs right before our eyes. And this time the reason is not a meteorite or a change in the level of the ocean, but humanity itself. Thirteen chapters of this book talk about thirteen biological forms that completely disappeared from the face of the Earth or balancing on the verge of disappearance for a variety of, sometimes not at all obvious reasons. For example, because we invented planes