Archaeologists in Spain have uncovered compelling evidence that early human ancestors might have cannibalized children over 800,000 years ago. The discovery at the Gran Dolina cave site reveals a child’s neck bone bearing butchery marks, implying gruesome practices by Homo antecessor. Such cannibalistic behaviors could have served various purposes such as survival strategies or social norms. This find aligns with similar findings in Kenya and the UK, shedding new light on ancient human behaviors and customs.