Take part in the City Nature Challenge this Friday through Monday. All you need is a camera or cellphone with a camera, an iNaturalist account, and the iNat app installed on your phone. You can take pictures of plants, birds, insects, and other animals to upload to iNat for identification. Or, you can help identify others’ photos. Learn more at citynaturechallenge.org. Be sure to “join” City Nature Challenge 2020: San Antonio on iNat.