Why did vertebrates conquer both the land and the air before the depths of the sea?
A feud between the revolutionary group MOVE and Philadelphia officials reached a bloody culmination.
Inspired by dinosaurs, Alex goes on a journey to stabilize collagen and create leather...with eggs.
Long-extinct dinosaurs may still haunt us—possibly driving us to age faster than any vertebrate.
Only twice in Earth's history have supermountains risen, and both times reshaped life forever.
Tracing the violence, protests and arrests stemming from federal immigration sweeps across the U.S.