The South Temperate Zone refers to the region surrounding the southern part of the equator. This zone has a unique climate due to its location and is characterized by moderate temperatures. There are several synonyms that can be used to refer to this zone, including the southern subtropics, the southern hemisphere temperate zone, and the Antarctic Circle. These terms allude to the area's location in the southern hemisphere and its climatic conditions. Other synonyms include the southern temperate belt and the southern latitudes, which describe the zone's position on the globe. The South Temperate Zone is home to several unique ecosystems, including the grasslands of South America and the forests of Australia and New Zealand.