Our prehistoric human ancestors relied on deliberately modified and sharpened stone tools as early as 3.3 million years ago.

A study of bird flock movement revealed that travelling en masse is less efficient than flying solo. Over six years, a team led by James Klarevas-Irby from the Max Planck Institute of Animal Behavior, ...

As far back as 22,000 years ago, humans may have improvised makeshift transportation tools that left grooves alongside their ...