What is a characteristic of savanna grasslands?

Savanna grasslands are primarily characterized by seasonal wet and dry conditions. This climate feature is crucial in shaping the vegetation and wildlife found in savannas, which typically exhibit a mix of grasses and scattered trees. The distinct wet season allows for the growth of grass and supports a diverse range of herbivores, while the dry season leads to a more arid environment that influences the types of species that can thrive there.

High rainfall year-round is not characteristic of savannas, as these regions experience significant variations in precipitation. Likewise, the presence of expansive forests does not apply to savannas, which are defined by their open grassland structure rather than dense tree cover. Consistent cold temperatures also do not describe savanna climates, which generally have warm temperatures that support the growth of grasslands and the diverse fauna adapted to these seasonal changes. Thus, the characteristic feature of savanna grasslands is indeed the seasonal wet and dry conditions.