Greater Phoenix City Nature Challenge 2026: Nature Observations 101 – Using iNaturalist for the Greater Phoenix City Nature Challenge

Do you like observing nature? Then help science and make your observations count! The City Nature Challenge is a friendly worldwide competition among cities to see whose residents can spot and identify the most wildlife. Join Arizona Science Center on April 18 to learn how to use the iNaturalist app, sharpen your observation skills, and become a community scientist in preparation for the Greater Phoenix City Nature Challenge April 24-27. Visit GreaterPhoenixCNC.com for more information on The City Nature Challenge.   Part of Greater Phoenix City Nature Challenge 2026