Final answer:
The fossils at Gran Dolina, with their associated stone tools and evidence of social behavior, and the important hominid fossils preserved in the Great Rift Valley of Ethiopia, including the Bodo site, offer crucial information on early human technology and cooperative behaviors.
Step-by-step explanation:
The fossils found at Bodo, Ethiopia and Gran Dolina, Spain, offer unique insights into the behavior and technology of early human ancestors. For instance, the discovery at Gran Dolina is significant for the presence of stone tools, including Oldowan-style cutting flakes and hand-held cores, and for the suggestion that early humans may have been engaged in social cooperation, as evidenced by the transport of large animal carcasses back to the site for consumption. Cutmarks on animal remains and the absence of retouched tools suggest a primary focus on meat processing. In Ethiopia, the Great Rift Valley, which includes the Bodo site, is known for the preservation of important fossils and bones of several hominid species, giving researchers critical insights into our evolutionary history.