Educational audiobook for children that talks about the fifteenth of the Sustainable Development Goals (SDGs), life on land. An ecosystem is a community of living beings and the physical characteristics of the environment where they live. On planet Earth there are many types of ecosystems, both aquatic and terrestrial. Terrestrial ecosystems are those that occur on land masses such as continents or islands such as deserts, forests or jungles. Forests help to clean up air pollution and are home to more than 80% of all terrestrial species of animals, plants and insects. Millions of people living in or near forests depend on them for their livelihoods. Due to human activity, some 13 million hectares of forest disappear every year, putting the preservation of biodiversity at risk. This is one of the reasons why it is so important to promote sustainable forest management, in addition to controlling logging.