Who were the pirates of the Caribbean Sea ? How did they live? When did they first appear and why ? What is booty? Why did pirates bury it? Share in the pirates’ dangerous …
"Who were our earliest human ancestors? Where did they come from? What did they hunt? What tools did they invent? How did they evolve over time? What traces did they leave behind? …
Seventy million years ago there was explosive volcanic activity in the Mountains near Santa Cruz Valley. Thirty million years ago the volcanoes burst forth again to create sheets …
