Why did early humans eat the marrow from animal bones?

Early humans consumed marrow from animal bones primarily as a rich source of nutrients, including fats, proteins, and essential vitamins. This nutrient-dense food helped support their energy needs and overall health, especially in harsh environments where other food sources might be scarce. Additionally, marrow was easier to access and extract than muscle tissue, making it a practical choice for survival. The consumption of marrow may have also played a role in social bonding, as sharing this resource could strengthen group ties.