A primary forest is a virgin forest that has never been touched by the hand of man; its fauna and flora is so varied that it is calculated that only 14% of its species have been identified. More than half of virgin jungles are found in the tropics with 80% of the world's biodiversity; it is fundamental to regulate carbon emissions for natural resources and the climate. The protection of these forests is a matter of survival, but it is not related to simply protecting an isolated wooded area since it is important that species are free to move around. Take the example of the ''Corredor del Jaguar'' that links 13 countries from Mexico to Argentina, passing through Costa Rica, joining different jaguar populations to prevent extinction. The primary forest in Corcovado National Park has fifty specimens (15,000 estimated in the world).