The Wave, Arizona
Rainer Großkopf
Striated Muscle
M. I. Walker
Tourmaline Elbaite From Brazil
Joel E. Arem
Glacial Scouring
Ted Kinsman
Cardiac Muscle
Eric V. Grave
Cardiac Muscle, Lm #1
Science Stock Photography
Bell Rock, Sedona
Charles Angelo
Thomas Hodgkins, English Pathologist #1
Science Source
Contracted Skeletal Muscle TEM
Biophoto Associates
Cardiac Muscle, Lm
Science Stock Photography
Skeletal Muscle Lm #4
Alvin Telser
Cardiac Muscle Fiber, Illustration
QA International
Cross-bedded Sandstone
Charlie Ott
Tourmaline Elbaite From Brazil #1
Joel E. Arem
Thomas Hodgkins, English Pathologist
Science Source
Thomas Hodgkins, English Pathologist #2
Science Source
Delicate Arch In Arches National Park
Ron Sanford
Skeletal Muscle Of Rat, Tem
David M. Phillips
Skeletal Muscle Of Rat, Tem #1
David M. Phillips
Coyote Buttes, Az
Sean Bagshaw
Coyote Buttes, Az #1
Sean Bagshaw
Coyote Buttes, Az #4
Sean Bagshaw
Coyote Buttes, Az #3
Sean Bagshaw
Sandstone Reflections
Dennis Flaherty
Skeletal Muscle Lm #2
Alvin Telser
Colorful Sandstone In Arizona
Adam Jones
Cardiac Muscle, Lm #2
Science Stock Photography
Folded Rock With Anticline
Dan Guravich
Striated Muscle, Lm #1
Joseph F. Gennaro Jr.
Contorted Phyllite
A.b. Joyce
Striated Human Muscle
Michael Abbey
Two Sisters Rock, Az
Charles Angelo
Metamorphic Rock
Art Wolfe
Contorted Phyllite
Joyce Photographics
Skeletal Muscle, Lm
Alvin Telser
Striated Muscle, Lm
Joseph F. Gennaro Jr.
Cerussite
Gary Retherford
Two Sisters Rock, Sedona, Az
Charles Angelo