Nature Study Guides

Study Guide for Titus Lucretius Carus's "De Rerum Natura (On the Nature of Things)"

Scat Finder

A Guide to Mammal Scat of Eastern North America

Bird Finder

Identifying Common Birds of Eastern North America

Pacific Intertidal Life

Identifying Marine Life of the Pacific Coast, Including Rocky Reefs and Tidepools

Pacific Coast Mammal Finder

Identifying Mammals by Their Tracks, Skulls, and Other Signs

Mushroom Finder

Identifying Fungi in North America

Bird Nest Finder

Identifying Aboveground Bird Nests in Eastern North America

Flower Finder

Identifying Wildflowers of the Midwest and Northeast

Tree Finder

Identifying Trees by Their Leaves in Eastern North America

Winter Tree Finder

Identifying Deciduous Trees of Eastern North America by Their Bark and Twigs

Rocky Mountain Tree Finder

Identifying Trees of the Rocky Mountains

Desert Tree Finder

Identifying Trees and Tree-Like Cacti of the Desert Southwest

Fern Finder

Identifying Native Ferns of Central and Northeastern North America

Track Finder

Identifying Mammal Tracks in Eastern North America

Berry Finder

Identifying Native Plants with Fleshy Fruits in Eastern North America

Winter Weed Finder

Identifying Dry Plants of Central and Eastern North America

Constellation Finder

Identifying Patterns in the Night Sky

Life on Intertidal Rocks

Identifying Marine Life of the North Atlantic Coast, Including Tidepools and the Intertidal Zones

Scat Finder

Identifying Mammal Scat in Eastern North America

Alpine Flower Finder

Identifying Wildflowers Above the Rocky Mountain Treeline

Shrub Finder

Identifying Woody Plants of Eastern North America

Pacific Coast Bird Finder

Identifying Common Birds Along the Pacific Coast

Rocky Mountain Mammal Finder

Identifying Mammals by Their Tracks, Skulls, and Other Signs

Pacific Coast Fish Finder

Identifying Marine Fish of the Pacific Coast

Pacific Coast Tree Finder

Identifying Trees of the Pacific Coast

Rocky Mountain Flower Finder

Identifying Wildflowers Below the Rocky Mountain Treeline

Redwood Region Flower Finder

Identifying Wildflowers of California's Coastal Fog Belt

Rocks and Minerals

An Illustrated Field Guide

Seabird’s Cry

The Lives and Loves of Puffins, Gannets and Other Ocean Voyagers