A pile of ancient arrowheads from southern Africa still holds traces of toxic plant residue, even after some 60,000 years.

A: Circumstantial evidence does not directly prove an element of the alleged misconduct, but provides information from which ...

We don’t entirely know when life arose on Earth, but there’s increasing evidence that it happened pretty quickly after the planet itself got started. Now, scientists have found some of the earliest ...

Researchers have combined physics and biology in a study that provides the first direct evidence explaining why we sleep. Viewing the brain like a biological computer whose resources are drained ...

Circumstantial evidence is in dire need of a public relations agency. Often described as weak and unconvincing, it is continually bashed by criminal defense attorneys as being synonymous with ...