In south-central Iowa, a roughly 13,600-year-old mastodon skull was unearthed from a creek bed on private property ... 3.5 million and 13,000 years ago. Sign up for Chip Chick's newsletter ...

Part of a human skull found on a Northern California beach more than 32 years ago was just identified as a woman who went ...

Earlier this month, archaeologists excavating a creek in southern Iowa unearthed the skull of a mastodon ... bone sticking ...