A young Grand Canyon Rattlesnake found in the rocks alongside the Colorado River. This young male’s will fade considerably as it ages, but will likely not become the nearly unicolor look of mature females.

A young Grand Canyon Rattlesnake found in the rocks alongside the Colorado River. This young male’s will fade considerably as it ages, but will likely not become the nearly unicolor look of mature females.

A Blacktailed Rattlesnake resting on a log at the base of a massive rock outcrop in the New Mexico bootheel. This was found late in the season, and the snake likely spends the winter in a crevice up above alongside several others.

Western Diamondback Rattlesnakes are the most common rattlesnake in the Phoenix and Tucson areas, and likely the most encountered snake overall. This isn’t necessarily due to abundance alone – they’re large, noticeable, and can be noisy. This one, however, thought it wasn’t seen, and remained in this coil in wash sand until after I left.

A Fer De Lance found resting in the center of the trail a short distance from camp in the Peruvian Amazon earlier in the year. The color and chaotic pattern of this snake would make it easy to miss, which could be a fatal mistake in the remote location we were at.

A small viper from the relatively dry tropical forests of Pacific coastal Costa Rica. This Slender Hognosed Pit Viper was found crossing a path late at night. They are common in the area, and in good conditions, dozens can be seen in a single night.

One of several baby Arizona Black Rattlesnakes laying around outside a winter den earlier in the year. As this snake matures, it will likely darken to mute the contrast shown here and be nearly entirely black, like the other females present in the rocks behind it.

The first of a handful (not literally) of Central American Eyelash Vipers I found on a family vacation a couple of weeks ago to Costa Rica. This blue-greena nd pink individual stayed the entire week on the same tree, moving lower at night to hope for prey. On the last day, a massive rainstorm got everything moving, and this snake took its queue to leave its tree and disappear into the tangle of green.

A female Western Diamondback Rattlesnake pausing on a bit near a large bush where she likely lives. These are the most common rattlesnake, if not snake, seen by hikers and homeowners in the Phoenix area.

This Southwestern Speckled Rattlesnake was resting on a small rise just below its aestivation den in Phoenix. She’s pregnant, and will stayed in the area most of the summer before moving up the hill to a rocky slope to give birth.

Years ago in Baja California Norte, MX, a broken down vehicle in our group made for a surprise overnight stay. A couple of us took the opportunity to explore a nearby canyon in hopes of finding a Rosaio Rattlesnake. We spotted this tiny baby crawling in the brush after a while. Worth it?
