Zayarny, Jack

Explore how animals have adapted to survive a variety of conditions and climates through metamorphosis.

The American Civil War was the sternest test yet for the young nation. The Civil War: 1856-1865 recounts the years of the conflict and how it impacted the development of the American nation. It includes the underlying causes, key events, and results of the Civil War, such as the emancipation of the slaves.

During the expansion west and amid the increasing population of the United States, the nation underwent several key changes in its government. Reforming the Government: 1813-1860 recounts these changes and the forces that played a role in causing them. It includes the presidency of Andrew Jackson and the technological and political changes that swept the nation, resulting in a new-look United States.

Take a close look at the science behind the life cycles of reptiles.

Take a close look at the science behind the life cycles of amphibians.

Learn about the life cycle, habitats, body features, and fun facts about the humpback whale.

Looks at the causes, locations, history, and all-time records of earthquakes.

Hurricanes are one of the deadliest natural disasters in the world. They are big and dangerous storms. People cannot stop hurricanes from happening, but scientists are now beginning to understand more about these storms.