THINKING CRITICALLY ABOUT THE EVIDENCE FOR EVOLUTION
VARIATION
THE NESTED HIERARCHY OF LIFE

 

EARLY ANIMALS

 

EARLY FISH

 

EARLY AMPHIBIANS

 

EARLY PLANTS AND INSECTS

 

EARLY REPTILES AND DINOSAURS

 

MAMMAL ANCESTORS, MAMMALS, AND HOMINIDS

BIRDS

(WITH AN EMPHASIS ON WOODPECKERS)

THE FOSSIL RECORD