A Sonoran Sidewinder from a sandy area in the far western end of the range for this subspecies. This is an older adult, measuring around 18″ long.

A Blacktailed Rattlesnake disturbed by my car as I made my way up a mountain road. These are large rattlesnakes found throughout the Sonoran Desert, including the high elevation Sky Islands of the southeastern part of Arizona. After a few photos, this snake was left to crawl down to cover.

Tiger Rattlesnake resting outside its aestivation den on a hot Phoenix summer night. These snakes are quite common in much of the area, though most hikers will never see one due to their secretive nature and effective camouflage. Even of those reported, a large number of them … if not most of them, end up […]

Rattlesnakes live in the highest areas of Arizona, often taking forms that defy what most residents would think possible. This one, an adult Twin-Spotted Rattlesnake (Crotalus pricei), is only about 20″ long as a mature adult, with a narrow head, tiny rattle, and body pattern that convergently looks just like a harmless nightsnake. These are […]

Like a lizard with the body of a crocodilian – a Common Stream-side Lizard found in Peru a few years ago.

A tiny Two-Striped Forest Pitviper (Bothrops bilineatus) from Loreto, Peru. This was the first I’d ever seen and it didn’t disappoint. Just a beautiful little green snake with a hint of blue.

An Arizona Black Rattlesnake in ambush in the first sun of the day. The flat rock is on the only, narrow path to a natural water hole – the only water in the region. Any small mammal wanting to visit it would have to jump across this rock. This is likely something this snake knows […]

Southwestern Speckled Rattlesnake sitting out in the early morning after a long night waiting for a mouse. It will have another chance for prey, as birds and lizards visit the hillside, possibly not noticing this orange “rock” perfectly situated in the landscape.

This tan Blacktailed Rattlesnake was spotted on a night hike in the Harquahala mountains of western Arizona. In the low desert, they look quite different than the typical yellow and black Blacktails we often post photos of. This is a very adaptable species, thriving in mountainous habitat from sea level to high mountains, in hot, […]

A Southwestern Speckled Rattlesnake hiding away on a dry May day. A site nearby will serve as an aestivation den a few weeks later, once temperatures were firmly in the triple digits each day.