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Reading Level: Grades 3-5
Interest Level: Grades 4-7


Page Count: 32
Trim Size: 7″ x 9″
Dewey: 580 – 590
Series Lexile®: 600 – 740
Series F&P Level: P
Correlation with National Curriculum:
CCSS RI 4.1, 2, 3, 4, 5, 7, 8; RI 5.1, 2, 3, 4, 8; RI 6.1, 2, 3, 4, 5, 6, 7; RI 7.1, 2, 3, 4, 5; NSES C, D, E, F


Library Bound Books
Individual Titles: $31.35 (List)/ $21.95 (S/L)

Set of 8 (978-1-64493-852-2):
$250.80 (List)/ $175.60 (S/L)

Paperback Books
Individual Titles: $9.95

Set of  (978-1-64493-898-0):

Hosted eBooks
Multi-user license, per title: $24.95

Set of 8 (978-1-64493-944-4):

Learn more about hosted eBooks

Invasive Species

As humans travel around the world, they sometimes introduce non-native species to new areas. Some of these species become invasive and harm their new environments. This series examines eight invasive species and investigates the various ways that people are attempting to manage them. Each book includes a table of contents, two infographics, informative sidebars, a “That’s Amazing!” special feature, quiz questions, a glossary, additional resources, and an index. This Focus Readers series is at the Navigator level, aligned to reading levels of grades 3–5 and interest levels of grades 4–7.

Select a title below to find educator resources, including lesson plans, curriculum correlations, resource links, and book-related downloadables.

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Invasive Species

“Burmese pythons eating alligators in the Everglades and rats infest­ing New York City may sound like the plot of a horror movie, but these real situations and other animal takeovers are analyzed in the Invasive Species series. Each volume focuses on a particular invasive species and opens with a chapter that explains how it has negatively affected its non-native environment. Straightforward, thorough text continues to describe how these invasive species traveled to different parts of the world, their impacts on food webs, and why they are dif­ficult to contain. Burmese Pythons relates the numerous ways these snakes threaten native Everglade animals and several python hunting techniques. Cane Toads emphasizes the destruction these croakers have caused to wildlife in their non-native Australia due to their high toxin level. Rats spotlights how few predators and population explosions contribute to influxes in this rodent’s presence in non-native, urban settings. Tiger Mosquitoes examines the virus-carrying insects’ resiliency in non-native environments and its danger to humans. The final chap­ter of each book looks at research and scientific methods being used to control and even eliminate the invasive species. A variety of visuals is also prominent, including photos of the animals and science in action, maps of the species’ range, and life-cycle diagrams. An appealing com­bination of STEM and high-interest reading.” — Booklist

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