Экология. Познавательная энциклопедия

All earthly creatures live in the biosphere, which consists of air, water and land. Within this life zone, several million species of animals and about 500,000 species of plants interact with each other. Their interaction created and shapes our planet. The science of this interaction is called ecology. This encyclopedia covers a wide variety of environmental issues. Why do some animal species live only in certain places, while others are distributed throughout different regions? Why are the world's forests different? Are there plants in Antarctica? How do tropical forests work? How do plants protect themselves? How are new habitats colonized?