Neanderthals
The discoveries of ancient human teeth have played a major role in determining the time period during which the first humans and Neanderthals lived.
A new study revealed that some of the first humans in Britain lived in Kent 620,000 years ago.
Archaeologists in China have discovered a hoard of intricate stone blades attributed to ancient humans who lived less than 100 miles (160 kilometers) west of modern Beijing.
