In the first chapter of "The Sixth Extinction," Kolbert focuses on the extinction of amphibians in Panama. She describes a species of frog, the golden frog, in the El Valle de Anton, that was extremely toxic. The frog was a symbol of the village's strength, and after it began to disappear, the village was in shambles. A research center in the Valle began to research the causes of the frog's extinction, and came to the conclusion that a fungus was poisoning the frogs. This particular case of extinction was categorized as one of the first "background extinctions," or a catastrophic depletion of species that is caused by events such as natural disasters.
"The Sixth Extinction" by Elizabeth Kolbert is a novel that focuses on the mass extinction of species in the Anthropocene. Kolbert starts her novel by describing various aspects of the human race, and noting that, although humans are not particularly strong in terms of fertility, size, or strength, they are perhaps the most adaptable and intelligent species on the planet. Because of the human race's ability to form and articulate thoughts and communications, their actions have led to a large decrease in the biodiversity of many species on the planet.
Throughout the first half of the novel, the author gives many examples and statistics that reveal the shocking truth about the extinction of many species on Earth. She states that although natural selection and other natural factors will always cause species to go extinct, in this day and age, amphibians are going extinct 45,000 times faster than in the last million years. This rate is absolutely inconceivable. If these numbers continue to increase at a steady rate, the annihilation of species on Earth will be larger than that of the Cretaceous period; the largest known mass-extinction on Earth.
Because of the human race's desire to relocate species, destruct habitats, and burn fossil fuels, the world is beginning to see a dramatic decrease in biodiversity. Acidity is destroying the calcium-based shell animals of the ocean and completely destroying the marine ecosystem. A rise in temperature is creating environments that are not sustainable for land mammals. Deforestation is destroying the habitats of animals in many parts of the world. If humans do not become cognizant of their actions, coupled with creating mechanisms to stop species extinction, many of the organisms on Earth will soon disappear, including the human race.