- Finding Your Way Without Map or Compass
- Late Migrations
- The End of Eden
- Twelve Birds and Their Songs
- The Cowboy and His Elephant
- Dare to Be Great
- Walking
- Climate Change
- Rooted
- Why We Should Go Vegan
- Whales We See in the Gulf of Maine
- The Perfect Horse
- Catlish is cat talk
- Wild Animals for Kids
- The Life of the Bee
- The Nature of Oaks
- The Stranger in the Woods
- Blue Pastures
- The Breath of Life
- SICK WATER?
- Adventures in Volcanoland
- World of Wonders
- Antarctic Penguins
- Meet JoJo
- What an Owl Knows
- Bryophytes of Western Washington
- Explore African Elephants
- The Snow Leopard
- An Immense World
- Heat Wave
- Océanos
- Braiding Sweetgrass
- Energy of the Future
- Lesser Known Texas Natives
- The Water Will Come
- Birds of Massachusetts Field Guide
- Studies of American Fungi. Mushrooms, Edible, Poisonous, etc.
- Wonderful Creatures
- A Little Brother to the Bear, and other Animal Studies
- Birds of Prey
- Reef Life
- A Fish Tale
- Love Letter to the Planet
- The Raising and Care of Guinea Pigs
- Student's Hand-book of Mushrooms of America, Edible and Poisonous
- Cats and Conservationists
- As If Aliens In The Oceans
- The Common Plants of the Muskegs of Southeast Alaska
- The Backyard Bird Chronicles
- The Snow Leopard
- Creatures, Plants and More!
- The Botany of Desire
- Nā Lāʻau Lapaʻau Hawaiʻi
- The Forest Unseen
- Cod
- Sharks
- Silent Spring
- Tobacco; Its History, Varieties, Culture, Manufacture and Commerce
- The Ocean and its Wonders
- Storm Warning
- Not the End of the World
- PLANT IDENTIFICATION GUIDE FOR BEGINNERS
- Common Texas Hill Country Forbs
- Pilgrim at Tinker Creek
- Woody Plants of the Texas Hill Country
- My First Summer in the Sierra
- Wildflowers of the Appalachian Trail
- The Bird Book
- The Backyard Beekeeper - Revised and Updated
- The Cultural Lives of Whales and Dolphins
- Gator Country
- Death in Zion National Park
- U.S. Guide to Venomous Snakes and Their Mimics
- A Buffalo in the House
- Kenya's Masai Mara
- An Elephant in My Kitchen
- Canoeing in the wilderness
- Guide to the birds of São Paulo's Atlantic Forest
- Cardboard, A Box Turtle's Story
- Life as We Made It
- Arctic Dreams
- Birds of Maryland & Delaware Field Guide
- High Mountain Glaciers and Climate Change
- Field Guide to Wild Flowers of South Africa
- On Trails
- The Elephant Whisperer
- The Old English Herbals
- Deep
- The Reign of Wolf 21
- Fifty Years of Global Warming
- The Invention of Nature
- Chesapeake Requiem
- Climate Capitalism
- Cape Cod
- Black Footed Cat
- Truth & Beauty
- Wild Apples
- Natural History
- Lions
- Reef Fish II
- Sweetwater Wetlands
- Earth Epochs
- Flowers from a Persian Garden and Other Papers
- Forest Forensics: A Field Guide to Reading the Forested Landscape
- Mushrooms of America, Edible and Poisonous
- Psilocybin Mushrooms
- Reef Fish
- Cannafornia - The Big Cannabis Encyclopedia
- I Can Hear the Cuckoo
- The Last Days of the Dinosaurs
- Sharks
- Animales y plantas con historias
- Wildflowers of Oregon
- The Eight Master Lessons of Nature
- Dinosaurs at the Dinner Party
- Southeast Medicinal Plants
- The Tiger
- Be the Change You Want to See in the World
- The Climate Book
- The Story of a Tambo River Bream
- The Yosemite
- Common Alpine Plants of Southeast Alaska
- American Wolf
- On Time and Water
- The Immense Journey
- Brown Bears of Brooks Camp
- The Common Plants of the Hemlock-Spruce Forests of Alaska
- Sibley's Birding Basics
- Birds and Bees, Sharp Eyes and Other Papers
- Nature Handbook
- Trees of the Northern United States
- The Man Who Walked Through Time
- Half-Earth: Our Planet's Fight for Life
- Tigers
- Half-Earth: Our Planet's Fight for Life
- Tigers
- Un regalo de la naturaleza
- Black Panthers Fact or Myth
- The Arabian Art of Taming and Training Wild and Vicious Horses
- The Soul of an Octopus
- The State of Environment, Information Networking In Rwanda
- Psilocybin Mushrooms
- Nature
- Domestic Animals for Kids
- Modoc
- Around the World in 80 Trees
- Amazing Sea Animals
- The Great River: The Making and Unmaking of the Mississippi
- Soil
- The Solace of Open Spaces
- Fatal Forecast
- Coquito
- Saving The Cheetah
- Birds, Illustrated by Color Photography
- The Mushroom, Edible and Otherwise
- The Complete Story of the Galveston Horror
- Bold Forecast The Hurricane Agnes Deluge
- Wild New World: The Epic Story of Animals and People in America
- The Book of the Damned
- Birds
- The Elephants of Thula Thula
- Aves del Recinto Universitario de Mayaguez
- Backpacking
- Energy
- Cool Food
- How to Speak Whale
- Ocean Mapbook
- Animals in Winter
- Pregnant Cat Outside My Window
- A Guide to Dinosaurs Their Past and Future
- Southern California’s Plants & Animals
- Ibis Snakes
- SURVIVAL
- Insectivorous Plants
- The Flowering Plants of Africa: An Analytical Key to the Genera of African Phanerograms
- The Feather Thief
- The Story of Climate Change
- On Animals
- Devotion Among Animals Revealing the Work of God
- Fire Weather
- Night of the Grizzlies
- The Esperanza Fire
- The Hidden Life of Trees
- Apes and Monkeys Photos and Facts for Everyone
- No Beast So Fierce
- The Perfect Storm: A True Story of Men Against the Sea
- The Alpha Female Wolf
- The Rise and Fall of the Dinosaurs
- Oceanography and Marine Biology: An Annual Review, Volume 59
- The Ride of Her Life
- Introduction to Flowers
- The Nature of Southeast Alaska
- Cloudspotting for Beginners
- A Beginner's Guide to Recognizing Trees of the Northeast
- Pro Tactics™ Walleye
- All About Marine Organisms
- Il risveglio della natura nell'architettura del bonsai
- Care About The Earth
- The Wave
- Seeing Further