Explore Milwaukee County (Click on picture) Milwaukee County, created in 1834 as a territorial county, is derived from a Native American word Mahnawaukee-Seepe meaning gathering place by the river.. Located in southeast Wisconsin, the county seat is Milwaukee.
The Cretaceous-Tertiary extinction event, or the K-T event, is the name given to the die-off of the dinosaurs and other species that took place some 65.5 million years ago. For many years, paleontologists believed this event was caused by climate and geological changes that interrupted the dinosaursâ food supply.
Using fossils and other natural evidence, scientists have formed a theory about why the dinosaurs disappeared. They now think that some major event, such as the crashing of one or more giant asteroids into Earth, led to rapid changes that caused the dinosaurs to become extinct. Fossils also tell us about organisms, such as dinosaurs, that are now extinct. Even though no one has ever seen a dinosaur, people have some idea about what dinosaurs looked like and how they behaved because of fossils.