Renowned ornithologist John Kricher presents an absorbing analysis of the diverse ecosystems that exist on Planet Earth. He provides a factual study of the many fragile and threatened portions of our biosphere while describing the interaction between each system and the effect of man's presence in these ecosystems. Professor Kricher also explains the amazing variety of flora and fauna that inhabit the individual ecosystems and addresses current ecological issues facing mankind.
"Author is a True Ecologist"
Before their extinction, dinosaurs dominated Earth's terrestrial habitats for about 160 million years. They present the ultimate puzzle in forensic science, but we have learned a great deal about them in the last 50 years. This lecture series will explain the evolutionary and ecological relationships among dinosaurs, what it might have been like to be present in their time, and the question of what ultimately brought about the total extinction of dinosaurs at the end of the Cretaceous Period.