Around 40,000 years ago, Paleolithic people inscribed bone with symbols that appear to be part of some sort of writing system ...

Stone Age artifacts discovered in a German cave could push back the origins of writing by 30,000 years. willbrasil - stock.adobe.com The origins of writing aren’t set in stone. The ancient cave ...

Symbols and markings carved into tools and figurines by Stone Age humans over 40,000 years ago could be an ancient precursor to writing, according to a new analysis. The marks, found on 260 artifacts ...

Thousands of marks carved into Paleolithic artifacts suggest that early modern humans were using structured symbols to communicate as far back as 40,000 years ago, a detailed analysis has found. The ...

Feb. 16, 2026 A parasite that may already be hiding in your brain has a shocking survival trick: it can infect the very immune cells sent to destroy it. Yet most people never get sick, and new ...

The immune system is a complex network that finds pathogens, removes damaged cells, and launches immune responses to protect the body from infection. White blood cells drive this defense: phagocytes ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

The nervous system consists of the central nervous system (brain and spinal cord) and the peripheral nervous system (motor nerves, sensory nerves, cranial and spinal nerves, autonomic ganglia, and ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Robert Kelly is managing director of XTS ...