extinction

The author discusses how advancements in evolutionary developmental biology has lead to experimentation on "reverse evolution, " which can be used to recreate prehistoric creatures, and educate scientists on ways to overcome birth defects.

Takes a look into what caused the extinction of dinosaurs on the earth and examines theories of some scientists including comets, meteors, and asteroids.

Evaluates several theories concerning the extinction of the dinosaurs including: climate change, the rise of mammals, changing vegetation, volcanic eruptions, and a major asteroid strike.

Learn what the dinosaurs were, how they may have died and why some other animals may have survived when the dinosaurs did not.

Presents the variety of sabertooth tigers that existed ten thousand to thirteen million years ago, including the Smilodon, discussing its long canine teeth, the family tree of cat species it is a part of, and other animals that had teeth shaped like sabers.

Presents an alphabetically arranged reference guide to terms and issues relating to plant and animal extinction, and lists laws, government agencies, and public interest organizations that deal with biological extinction.

Discusses some of the things paleontologists have learned about dinosaurs, and identifies a host of mysteries that still exist about the prehistoric creatures.

Describes and illustrates the theory that the dinosaurs became extinct after a giant asteroid hit the Earth over sixty-five million years ago.

Examines how and why dinosaurs became extinct and how people can help protect endangered animals today.