The Hidden Timeline: When Did Mammals First Appear on Earth?
The first mammals were not the lumbering giants of later eras, nor the cuddly companions of today’s savannas. They were small, furtive creatures—no larger than a mouse—slipping through the shadows of a world dominated by dinosaurs. Their emergence wasn’t a sudden explosion but a slow, relentless adaptation, a story written in the bones of creatures … Read more
