John P Rafferty

Primates

Rivers And Streams

Geochronology, Dating, And Precambrian Time: The Beginning Of The World As We Know It

Plate Tectonics, Volcanoes, And Earthquakes

The Paleozoic Era: Diversification Of Plant And Animal Life

Biomes And Ecosystems

Climate And Climate Change

Meat Eaters: Raptors, Sharks, And Crocodiles

Reptiles And Amphibians

Rats, Bats, And Xenarthrans

Glaciers, Sea Ice, And Ice Formation

Forests And Grasslands