Explanation:

 Tropical grasslands include the savanna usually associated with Africa, and savanna-type grasslands found in India, Australia, Nepal and the Americas. They are characterised by drought-resistant shrubs and grasses, dotted with trees such as acacias or baobabs. Seasons here are wet and dry, rather than summer and winter. The plentiful food that springs into life in the wet season draws and supports huge herds of grazing animals, such as the familiar mega-herds of African antelope.