Which evolutionary theory suggests that early hominids adapted more easily to dry climates?

Choose 1 answer:

1. the savannah hypothesis

2. the aridity hypothesis

3. the oasis theory

The aridity hypothesis suggests that early hominids adapted more easily to dry climates. This theory suggests that the savannah was expanding due to the arid (little or no rain) conditions. This expansion of this environment makes the hominids adapt to its changes thus they can adapt more easily to dry climates.