Kristina Killgrove

A small clay tablet from the site of Kish in Iraq reveals a student calculated the area of a triangle incorrectly 4,000 years ago.

Researchers have named a new species in the Homo genus. What do we know about these "big headed" people?

A set of footprints found at the site of Koobi Fora in Kenya reveals that our ancestor Homo erectus coexisted with a now-extinct bipedal hominin, Paranthropus boisei, 1.5 million years ago.

This stunning blue mask may represent the Aztec cycle of death and renewal.

Fifty years after a fossil skeleton of Australopithecus afarensis was unearthed in Ethiopia, we know so much more about how this iconic species lived and died.

A skeleton buried in a fetal position is actually made of bones from at least five people who lived across a span of 2,500 years.

At an Iron Age cemetery in Sweden, archaeologists discovered an unusual grave of a woman interred with an iron folding knife stuck into her burial.

Archaeologists in Sweden were expecting to find an ancient settlement, but they were surprised to discover a Viking Age cemetery with boat-shaped burial outlines.

It's possible that the wheel was invented by copper miners in the Carpathian Mountains up to 6,000 years ago, according to a modeling study that uses techniques from structural mechanics.

An ancient temple made by Arabian immigrants from the Nabataean culture has finally been found off the Italian coast near Naples.