Hominids are a group of primates that include modern humans, our ancestors, and other great apes like chimpanzees and gorillas. One of the key features that set early hominids apart from other animals was bipedalism, or the ability to walk on two legs. This adaptation allowed them to see over tall grass and spot potential predators or food sources more easily. As hominids evolved, they developed new ways to forage, or search for food, which included the use of simple tools. These early innovations, such as sharpened stones for cutting, made it easier to access different types of food and resources.