Arthropod Educational Walk at Brown’s Ranch Trailhead  Spiders, scorpions, bugs!  6 legged, 8 legged, and many legged!  About 84% of all animal species are arthropods. Join Dr. Rich Cochran on an easy 2 hour walk to discover the fascinating and diverse world of Arthropods and their role in the ecology of the Sonoran Desert.  Bathrooms are available at the trailhead.  Bring water for the trail. No dogs, please. Arrive 15 minutes before start of hike.