Roadrunner
Videos
The roadrunners, also known as chaparral birds or chaparral cocks, are two species of fast-running ground cuckoos with long tails and crests. They are found in the southwestern and south-central Unite
Three views of the same specimen
Greater roadrunner with a lizard
Greater roadrunners often become habituated to the presence of people.
Rattlesnake
Videos
Rattlesnakes are venomous snakes that form the genera Crotalus and Sistrurus of the subfamily Crotalinae. Rattlesnakes are predators that live in a wide array of habitats, hunting small animals such a
Western diamondback rattlesnake (Crotalus atrox), responsible for the majority of venomous snakebites in North America, coiled in defensive posture with rattle erect
1. Trigeminal nerve extending into the heat-sensing pit 2. Trigeminal nerve originating in the brain 3. Heat-sensing pit
Rattlesnake skull