Final answer:
Homo erectus had a different diet compared to earlier hominins. They had increased use of fire and cooked meat, which led to smaller teeth and jaws. They also had a larger brain size and more human-like gait and feet.
Step-by-step explanation:
The diet of Homo erectus differed from earlier hominins in several ways. First, there is evidence of increased fire use and eating cooked meat at H. erectus sites, which would have required more calories. This led to smaller teeth and jaws as the need for chewing decreased. Second, H. erectus had a larger brain size than earlier hominins, suggesting a shift towards a more advanced diet and cognitive abilities. Third, H. erectus had a more human-like gait and feet, allowing them to walk and run longer distances to chase prey.