Early LifeThis lession is about how life began and what things were like before early humans appeared.Course Sessions The Early
The Evolutionary Epic
Bringing the best history on the web. -- From Crash Course, their Big History Series, #5.So, in the last 3.8 billion years, life on Earth has
Life Begins
Bringing the best history on the web. -- From Crash Course, their Big History Series, #4.About the earliest forms of life on Earth, and some of
The Age of Mammals, 65 MYA – 200,000 BC
by Jack Le MoineIn the aftermath of the great comet, the small survived. Hot blooded creatures, the mammals dominated. As time went by, the
The Age of Dinosaurs, 250 MYA – 65 MYA
by Jack Le MoineAh, yes! The dinosaurs. Animals were big; the weather was hot; their blood ran cold. Little warm blooded mammals eeked out their
The Age of Animals, 400 MYA – 250 MYA
by Jack Le MoineBefore the dinosaurs, (if the logic of evolution is to be believed), the animals were less evolved. Scientists posit that
The Age of Fish, 650 MYA – 400 MYA
by Jack Le MoineIt is surprising that the earliest microbes appeared just as the Earth was beginning the last fourth of it's 4.5 billion
Dinosaur True Colors Revealed
Time: 122 million years agoPlace: NE ChinaPicture: This dinosaur's size.This is Sinosauropteryx. This is because scientists have analyzed a