A standard Western Diamondback Rattlesnake I found hanging out in an ambush position on a nice evening.

I found this Southwestern Speckled Rattlesnake out on the surface on a hot day. The camouflage of this animal doesn’t appear to be working from narrow perspective of the photo, but in greater context, this snake is very difficult to spot. Adjacent hillsides and iron-rich boulders break apart, and this is one of countless reddish […]

A small Sonoran Lyresnake from the extremely hot, dry desert of Yuma County, Arizona. This is one of a couple that showed up right in camp, and we got some photographs before letting it continue on its way. These cryptic snakes are almost entirely nocturnal, and rarely seen by Arizona residents.

A tiny frog from the Amazon, about as big as a thumbnail. It’s a Bassler’s Humming Frog, Chiasmocleis bassleri, found by our group in Loreto, Peru, in January of 2023.

A young Yarrow’s Spiny Lizard watches an odd primate operate some metal and glass device from a short distance, waiting to get back to work on the serious business of finding bugs. These charismatic lizards are common in the higher elevations of southeastern Arizona.

This Blacktailed Rattlesnake is typical of those you’ll see in the Phoenix area. They’re often a yellow/gold or greenish color, with quite a bit of variation in how much pattern is visible. The black tail may also show some faint grey bands, leading to some confusion as people look for a completely black tail to […]

We found this Sonoran Lyresnake on the move on a night hike in Yavapai County sevearl years back. This one is typical of the species for the area, with chaotic brown and tan blotches over a beige body, with a relatively disoganized look compared to some of the more cleanly banded version found elsewhere. They’re […]

A Western Diamondback Rattlesnake resting on the surface of the rock pile that serves as its winter den. This was not a particularly warm day, but it and several others were found in close proximity to one another to get ready for another year.

A Convict Treefrog (Boana calcarata) we found in Peru a few years back, near Iquitos. This one is showing the black and white bars on its sides that give it its name.

A New Mexico Ridge-nosed Rattlesnake (Crotalus willardi obscurus) from one of the remaining populations within the United States. These are small rattlesnakes adapted for high-elevation, higher-humidity environments than are typical in the surrounding Chihuahuan Desert. This is one of only two rattlesnake species in the country that are listed as Threatened under the Endangered Species […]