Final answer:
Evidence of Homo erectus scavenging for meat is suggested by stone tool cut marks on animal bones, which indicate meat removal by Homo erectus after predator kills, as seen in archaeological sites like Gran Dolina and Zhoukoudian.
Step-by-step explanation:
An animal bone with both animal tooth marks and stone tool cut marks may provide evidence that Homo erectus scavenged for meat if the tool marks suggest that the meat was removed by Homo erectus after the animal had been killed by other predators. Cut marks on bones indicate the use of stone tools to butcher the animal which, when paired with tooth marks from carnivores, suggests a possible sequence of the animal being first brought down by a predator and then scavenged by Homo erectus. This scenario is supported by the archeological findings, such as at the Gran Dolina site, where the presence of Oldowan style tools and animal remains with cut marks indicate that meat processing was a significant activity. Similarly, at the Zhoukoudian site in China, evidence of charred animal bones alongside ancient hearths implies that Homo erectus was cooking and consuming meat. However, distinguishing scavenging from hunting can be challenging, as both activities would leave similar cut marks on the bones.