Why are animals disappearing?

Even little ones know that dinosaurs and mammoths once lived on Earth. But, besides them, history remembers many species of animals that ceased to exist due to human activity, natural disasters, or changes in climate. Why can't we meet a Neanderthal now? And is there even a chance to bring dinosaurs back? This encyclopedia will tell you about natural selection, evolution, and how they work. Interesting tasks at the end of the book will give children the opportunity to play archaeologists, help bees and birds, and acquire woodworking skills.