The Port Townsend Marine Science Center is celebrating the nation’s annual Citizen Science Day on Saturday, April 14 with special activities at its Natural History Exhibit and Marine Exhibit at Fort Worden State Park. Visitors can take part in a BioBlitz and tour the redesigned marine exhibit, featuring a new conservation lab. The BioBlitz will take place at the Natural History Exhibit from 9 a.m. to 1 p.m. “Our BioBlitz is a fun and intensive study to catalog every living species we can find around the PTMSC and Fort Worden in a single day,” said PTMSC Citizen Science Coordinator Betsy Carlson. “We’ll look for birds, mammals, fish, invertebrates, trees, flowers, grasses and more. People of all ages and skill levels are welcome.” Bioblitz participants will download the free iNaturalist app and create an account before arriving. Observations can be made during the event with a smart phone or with a camera that can upload photos afterward. More details at https://www.inaturalist.org/projects/port-townsend-marine-science-center-bioblitz. Due to limited space for the BioBlitz, please RSVP to AmeriCorps Citizen Science Educator Lily Evanston at levanston@ptmsc.org. There is no admission fee, but donations are encouraged.