Now, Japanese researchers are moving a promising, tooth-regrowing medicine into human trials. If the trial is successful, the ...

The discovery of 1.5-million-year-old bone tools in Tanzania suggests early human ancestors had advanced cognitive abilities ...

The upper jawbone and partial cheek bone represent a mysterious unknown species that lived in present-day Spain between 1.1 ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Archaeologists have ...

Human remains brought home four months apart ... On Dec. 12, the dog showed back up at home, this time with a long bone later determined to be the tibia. Yates said investigators checked nearby ...

Ancient human relatives crafted sharp-edged tools out of animal bones around 1.5 million years ago, researchers say. Discoveries at Tanzania’s Olduvai Gorge, a famous East African fossil ...

In Olduvai Gorge, archaeologists have discovered a range of bone tools thought to have been made and used by an ancestral human species of hominid called Homo habilis 1.5 million years ago. Known as ...

Deep in a trench in Tanzania, researchers found dozens of tools crafted from animal bones some 1.5 million years ... to investigate the early stages of human tool-making. Before 1.8 million ...

The addition of bone implements to the human tool kit was an important moment, according to the researchers, reflecting cognitive advances and growing technological skills as well as a recognition ...

(CNN) — Archaeologists have uncovered a collection of bone tools in northern Tanzania that were shaped by ancient human ancestors 1.5 million years ago, making them the oldest known bone tools ...