✔ 100% Money-Back Guarantee on Eligible Items
✔ Prices Displayed in Your Local Currency
✔ Final Price = No Surprise Import Fees
✔ Complimentary Insured Worldwide Shipping on Qualifying Orders
✔ Select Collector & Specialty Pieces May Require Secured Delivery Handling
by Laura Perdew (Author), Micah Rauch (Illustrator)
A hands-on project book about the keystone species keeping habitats healthy!
Who's keeping the ecosystem healthy?
In any ecosystem, every species has a role to play. From towering trees and ginormous whales to the smallest microorganisms, plants, fungi, and insects, each species is important to the overall health of the ecosystem. But some of those species play such vital roles that without them, the ecosystem might collapse. These are called keystone species.
In Keystone Species: Meet the Animals Key to Ecosystem Health and Biodiversity with Hands-On Science Activities for Kids, readers ages 9 to 12 are introduced to several different types of keystone species from around the world as they discover the crucial roles these animals play in their ecosystems. Meet the predators, herbivores, ecosystem engineers, mutualists, and foundational species that all play a keystone role in regulating an ecosystem. Investigate how these ecosystems function, learn about threats to wolves, sharks, beavers, alligators, flying foxes, bees, wildebeests, bison, and coral, and dive into what happens when these species disappear. Throughout the book, find stories about science-based conservation practices that inspire kids to do their part in protecting their own environments.
Keystone Species includes hands-on activities and critical thinking exercises to help readers gain a deeper understanding of ecosystems and the role of every species. STEM activities, a narrative writing style, fun facts, words-to-know, and links to primary sources, videos, and other relevant websites take readers on an exploration of keystone species around the world.
Additional materials include a glossary, a list of media for further learning, a selected bibliography, and index. All books are leveled for Guided Reading level and Lexile and align with Common Core State Standards and Next Generation Science Standards.
All titles are available in paperback, hardcover, and ebook formats.
Author Biography
Laura Perdew is an author, writing consultant, and former middle school teacher. She is the author of The Fort (Page Street Kids, 2020) and over 50 books for the education market including Biodiversity: Explore the Diversity of Life on Earth (Nomad Press, 2019) which is on the Booklist editors' list of the Top 10 Books on the Environment & Sustainability for Youth 2020. Laura lives in Boulder, Colorado.
Website: lauraperdew.com
Micah Rauch is a freelance graphic designer and illustrator from the beautiful state of Montana. He received a BFA in graphic design from Montana State University in Bozeman, Montana and has illustrated several books for Nomad Press, including Kitchen Chemistry, Fairground Physics, and Crazy Contraptions.
Website: micahrauch.com
Instagram: instagram.com/micahrauch
- ✔ Authenticity Guaranteed — Verified Designer Goods
- ✔ Sourced from Authorized European/U.S. Luxury Distributors
- ✔ Secure Checkout — SSL Encrypted Payments
- ✔ Fast Global Delivery — 3–11 Business Days
- ✔ Easy Returns on Eligible Items
- ✔ 100% Money-Back Guarantee — Full Refund if Not Satisfied
AUTHENTICITY GUARANTEED
Reserved for you — complete your purchase to secure this piece.
OFFICIALLY AUTHORIZED RESELLER
Discover Officially Authorized Authentic Items at STORE7994.com - Certificates Available on Request!
Independently verified for store quality and customer safety.
Trust score: 91/100
All designer items offered by STORE 7994 are sourced from trusted luxury distributors and verified through independent authentication services.
Learn how STORE 7994 authenticates luxury items
Guaranteed Authentic — Includes Brand Documentation & Third-Party Verification Options.
Shipping information
- Free Shipping* on all orders over $300 USD to most countries* Estimated delivery: 2-5 business days Mon-Sat to U.S., CA, EU etc.
- Tracking available: DHL Express
- Store 7994 Shipping policy
- Global delivery in 3–9 business days (location dependent).
- Free Worldwide Shipping $300+. International duties & VAT are calculated by destination country and may be collected upon delivery. UK orders are subject to 20% import VAT upon delivery.

Our innovation isn’t just in the brands we carry — it’s in the way we connect them. From our automation engine that keeps collections globally updated to our commitment to authenticity-first presentation, STORE 7994 exists where timeless design meets modern precision.
Every product we offer is:
Elevated · Intentional · Exclusive · Authentic
STORE 7994 is an authorized reseller of luxury fashion houses. Certificates and proof of authenticity are available to brand owners and partners upon request.
Returns & Refunds
We want you to shop with confidence at STORE 7994. If your purchase does not meet expectations, eligible items may be returned under the conditions below.
Return Eligibility
Items must be unused, unworn, and in original condition with all tags, packaging, and accessories included. Items showing any signs of wear or damage will not be accepted.
Return Window
Return requests must be made within 14 days of delivery.
Return Shipping
Customers are responsible for return shipping costs unless the item is defective, damaged, or incorrect.
Luxury Items
Items valued over $1,000 may be subject to a 7% restocking fee upon approved return.
Non-Returnable Items
For hygiene and product integrity reasons, the following items are final sale once opened or used:
• Underwear
• Fragrances
• Any worn or used items
Made-to-Order Items
Custom-designed products, including STORE 7994 hoodies, are made exclusively for each customer and are final sale. These items are not eligible for return or exchange unless defective or incorrect.
If you receive a defective or incorrect item, please contact us and we will make it right.
International Shipping & Duties
Many of our products ship directly from trusted international partners. Any applicable customs duties or import taxes are calculated at checkout and are non-refundable, even if the item is returned.
Returns & Associated Fees
All approved returns are subject to a $24 return processing fee. For international orders, duties, taxes, and return fees will be deducted from the original payment.
Shipping Policy
Complimentary shipping is offered on orders over $300. Orders below this threshold are subject to standard shipping rates at checkout.
>