Test your rattlesnake identification skills.
For each image, choose whether you believe it is a Western Diamondback Rattlesnake, or a Mojave Rattlesnake. Some are easy, others are more difficult. All of these are wild rattlesnakes, photographed at various places in Arizona.
There are 40 possible points, 1 per correct answer.
At the end, you will get your score. Try and resist looking at the correct answers to each photo, so that you can take it again and improve your score over time.
Before you begin, you can watch this video detailing the differences between the two species.