The type of ecosystem characterized by hot temperatures and little vegetation is known as a desert. Deserts can be hot, like the Sahara, or cold, like the Antarctic. These ecosystems are defined by their low precipitation, which typically does not exceed 250 mm (10 inches) per year. As a result, deserts often have sparse plant life, primarily consisting of drought-resistant species, such as cacti and succulents. Despite harsh conditions, deserts host diverse wildlife adapted to survive extreme temperatures and limited resources. These ecosystems play a crucial role in the Earth's biodiversity and climate regulation.