Sixty-six million years ago, the dinosaurs had a really bad day when a colossal asteroid impact spurred their extinction. But ...

One of Earth’s earliest mass extinctions wiped out most ocean life during a sudden global ice age. From the ruins, jawed vertebrates survived, diversified, and transformed the course of evolution.

The past as prologue -- Adaptation -- Origin of species -- Human evolution -- Living fossils -- Extinction -- Macroevolution -- Epilogue, old and new pictures https ...

Greenhouse of the dinosaurs -- Bad lands, good fossils -- Magnets and lasers -- "Punk eek" in the badlands -- Death of the dinosaurs -- Marine world -- Rocky mountain jungles and eel's ears -- From ...