Editor’s note: “Critters” features insects, spiders, snakes and other freaky/fun creatures unique to the Grand Valley. You know, the kinds of critters you aim to keep your distance from, but love to ...

A male collared lizard, Crotaphytus collaris, surveyed its territory from atop a small boulder. I approached to get a better look, but it moved to hide in a clump of grass. I approached again, and it ...

This is the fourth in a series of weekly columns about Colorado National Monument in honor of the park's centennial anniversary on May 24. Desert bighorn sheep and golden eagles consider Colorado ...

Biologist Alan Templeton fell in love with the eastern collared lizard that lives in the hot, dry Ozark glades when he was 13. By the time he returned from graduate and postgraduate work, 75 percent ...

The warm, sunny days of early spring make me feel like a lizard. I just want to lie on a rock, bask in the sun and thaw out my bones. The (mostly) warm and sunny weather we have enjoyed the past few ...

My son got a gecko for Christmas and named him Binx. He has always had a fascination with lizards in the wild. Many parents who send their kids to Durango Nature Studies’ summer camps can share in ...

North America has 155 species of lizards classified into eight families native to the continent. A few of these species that arrived to the continent during the years of conquest are now considered ...

Whole-animal performance traits, such as locomotor performance, are central to current concepts of phenotypic adaptation, yet the possible evolution of such traits via sexual selection is an ...

A male collared lizard, Crotaphytus collaris, surveyed its territory from atop a small boulder. I approached to get a better look, but it moved to hide in a clump of grass. I approached again, and it ...

In a time when a five-year grant is considered a long-term grant, Alan R. Templeton, PhD, a professor of biology in Arts & Sciences at Washington University in St. Louis, has managed to follow some of ...