Savannah is a name given to a type of vegetation cover usually consisting of grasses and sparse trees.
The topography is generally flat with tropical climate, presenting two well defined seasons, one rainy and one dry. Savannas occur mainly in the intertropical zone of the planet, so it receives a huge amount of sunlight.
The most well-known savanna species is African, but there are others: tropical (African) savannas, subtropical savannas, temperate savannas, Mediterranean savannas, marshy savannas and mountain savannas.
Tropical and subtropical savannas are found on all continents, with two well-defined seasons (one hot and one rainy). The soils of these areas are relatively fertile, with grasses attached to them, usually devoid of trees. Africa has savannas with these aspects, especially those of the Serengeti.
Temperate savannas are identified at medium latitudes and on all continents, are influenced by temperate climate, whose summer is relatively humid and the winter dry. The vegetation consists of grasses.
Mediterranean savannas are vegetations that occur in regions of Mediterranean climate. In these areas the soil is poor, with shrubs and small trees germinating on the surface, this composition is in serious danger of extinction in the face of constant human intervention, mainly through the extraction of firewood, animal husbandry, agriculture, urbanization and so on.
Marshy savannas are vegetative compositions that occur in both tropical and subtropical regions of the five continents. This type of savanna is periodically flooded.
Mountainous savannas is a type of vegetation that occurs mainly in alpine and subalpine areas in different parts of the globe, due to geographical isolation, it houses endemic species.