Pittsburgh Zoo & PPG Aquarium
Pittsburgh Zoo: American Beaver
The American beaver is North America's largest rodent. Use this resource to discover more about this beaver known for building dams, canals, and lodges.
Curated OER
Wikipedia: National Historic Landmarks in New York: Petrified Sea Gardens
First stromatolites in North America discovered here; fossils of marine algae were fully described by pioneering female paleontologist Winifred Goldring.
The History Cat
The History Cat: Age of Exploration: The Columbian Exchange
A fascinating look at the exchanges that took place around the world after the Americas were discovered. This covered the gamut from diseases which wiped out 90% of the native peoples in North and South America, to farm animals, tools,...