Camden Public Library and Coastal Mountains Land Trust will host a presentation by Maine Master Naturalist Roger Rittmaster about iNaturalist, an app used to identify plants and animals, on Thursday, June 4, at 6 p.m. The presentation will be conducted via the Zoom meeting platform; email jpierce@librarycamden.org to request a link to participate.

The iNaturalist program uses artificial intelligence to identify a plant or animal in a photograph. As well as providing users with information, the program allows amateur naturalists to contribute to biodiversity science. At its core, iNaturalist is an online social network of people sharing biodiversity information to help each other learn about nature.

In a news release, Rittmaster noted that more than 37 million photographs from around the world have been submitted by more than 127,000 individual users.

Rittmaster encourages those who plan to participate in the program to download the iNaturalist app onto their computer, tablet or smartphone and set up a free account ahead of the presentation. He also suggests having a specimen (like a leaf or flower) on hand to photograph. This will allow participants to watch his presentation (on a separate device) and follow along in real time on their own iNaturalist account.

Rittmaster is the author of “Butterflies Up Close: A Guide to Butterfly Photography.” He serves on the board of Coastal Mountains Land Trust and is a past chair of the Camden Conservation Commission.

For more information, visit librarycamden.org.