The inside is clean, but there are stains on the outside due to aging. See photo 5. Retail price: 2400 yen This book describes a scenario where the ecological niches are left vacant due to the near extinction of current life forms, including humans, and the surviving organisms evolve to fill those niches, resulting in the emergence of new species. The book is divided into three periods: 5 million years, 100 million years, and 200 million years in the future. The later the period, the more the life forms diverge from the current biota. The book features 12 characteristic regions, four for each period, and depicts the ecosystems of those regions. Please understand that this is a used item before purchasing.