Gray Wolf
Jean-Louis Klein and Marie-Luce Hubert
Wild Horse on Cumberland Island in Georgia
Art Wolfe
Loblolly Pine Forest Canopy
Greg Dimijian
Family On Camping Trip, C.1970s
H. Armstrong Roberts/ClassicStock
Brown County State Park, Indiana
David Davis
Dylan Thomas
Rollie McKenna
Ruffed Grouse Courtship Display
Linda Freshwaters Arndt
Life In A Dead Tree
Chase Studio
Viking Blacksmiths Forge The Sword
Photo Researchers
Shore Of Isle Royale #5
Ted Kinsman
Petrified Wood
Ted Kinsman
Drake Mallard #1
Linda Arndt
Loyalsock Creek
Michael Gadomski
Black-capped Chickadee Poecile #5
Linda Freshwaters Arndt
The Stock Exchange In 1850
Photo Researchers
Bell Smith Springs, Illinois
Willard Clay
King BĂ©hanzin Of Dahomey, Africa
Science Source
Wooding Up On The Mississippi 1863
Photo Researchers
Ruffed Grouse Drumming #1
Linda Freshwaters Arndt
Polar Bear With Cub
M. Watson
Rip Van Winkle
NYPL Omikron
Treehouse Door
Mike Agliolo
Blacktail Or Mule Deer #5
Art Wolfe
Woman Playing Golf, C.1960s
H. Armstrong Roberts/ClassicStock
Carpenter Ants
Theodore Clutter
Wood Sorrel
Science Source
Wood Storks #1
Millard H. Sharp
Wood Storks #13
Millard H. Sharp
Wood-boring Beetle #2
Barbara Strnadova
Eastern Wood Pewee #1
Anthony Mercieca
Wood Duck Drake
CK Lorenz
Forest Fire #1
Richard Hansen
German Short-haired Pointer
John Daniels
Redwoods State Park
George Ranalli
Landing Of The Pilgrims At Plymouth
Photo Researchers
Black-capped Chickadee #4
Linda Freshwaters Arndt
Ruffed Grouse Courtship Display #18
Linda Freshwaters Arndt
Covered Bridge in Vermont
Rafael Macia and Photo Researchers
Mink Trapping, 1862
Photo Researchers
Isle Royale National Park
Ted Kinsman
White-tailed Doe And Fawn #2
Linda Freshwaters Arndt
Blue Jay Cyanocitta Cristata #1
Linda Freshwaters Arndt
Blue Ridge Mountains
Bruce Roberts
Barren-ground Caribou
Mark Newman
Wild Man
Photo Researchers
Processed Lumber At Sawmill
William H. Mullins
Raw Logs At Sawmill
William H. Mullins
Senior Man Hunting Ducks, C.1920-30s
H. Armstrong Roberts/ClassicStock
Family Dinner, C.1950s
H. Armstrong Roberts/ClassicStock
Ant Colony With Larvae
Matthias Lenke
Shore Of Isle Royale #6
Ted Kinsman
Medicare Registration
Bruce Roberts
Rongorongo Tablet, Proto-writing
George Holton
Rongorongo Tablet #1
George Holton
Rongorongo Tablet #2
George Holton
Forest Sanctuary Of Saint Francis
Kenneth Murray
Whitetail Deer Buck
Thomas And Pat Leeson
Bristlecone Pine
Brenda Tharp
Traditional Native Canoe
Nancy Sefton
Baby Groundhog
David Kenny
Timber Wolf #1
Hans Reinhard
Stag And Unicorn 18th Century
Science Source
Tlingit Workshop
Ron Sanford
Loading Logs Onto A Truck #2
William H. Mullins
Lake Lure, Nc
Bruce Roberts
Wood Stork Nestlings
Millard H. Sharp
Marbled Wood Frog #2
Danté Fenolio
Unhatched Duck Eggs
Linda Freshwaters Arndt