A book with impressive illustrations to discover the extinct animalsthat once populated the Earth. The Earth is constantly changing.Continents move, the sea rises and falls, the climate becomes warm orvery cold, volcanoes erupt, asteroids fall... Living beings alsochange and evolve. Only the best adapted to the place they inhabitsurvive, the rest become extinct and their place is taken by others.That is called natural selection.In this book we remember the animalsthat lived before us, some for millions of years longer than Homosapiens has been populating our precious planet, and that no longerexist. We remember what they were like, how they lived, and thepossible causes of their extinction.