The more they dig in Orange County, the more mastodon remains they find. The Ice Age mammals went extinct 11,000 years ago.

Braces, rubber bands, even jaw surgery—millions endure them in pursuit of a straighter smile. But were misaligned smiles always this common? Research suggests that might not be the case. While ...

According to new CT scans and models, parts of the 140,000-year-old skull resemble those of modern humans, while the jaw appears to be more similar to those of our extinct relatives ...