Want to learn to help native plants and animals survive? Join the Friends of the Blue Hills for one morning – or more – to help remove invasive species in the Blue Hills. You will help pull plants that are disrupting the habitat and health of the park’s native plants, animals and insects. Bring water and snacks. To register or with questions, email biodiversity@FriendsoftheBlueHills.org or call 781-828-1805. Upcoming dates/times include Saturday, August 13, from 9:00 to 11:00 a.m. and Saturday, September 10, from 9:00 to 11:00 a.m.