Barbara A Somervill

Less than a decade ago, there were only a few pythons in the everglades. Today more than 100,000 of them are slithering around south Florida, crushing what was already a delicate ecosystem. Readers will be introduced to the concepts of invasive species and challenged to think critically about the cause, effect, and control of dangerous creatures.

Discusses the impact to the economy and ecology of North America from this invasive species of ant originally native to South America.

Profiles the life and work of the Polish astronomer who believed that the planets revolved around the Sun and the Earth was not the center of the universe.