Boston BioBlitz Initiative for Girls (BBIG) is a STEM program for girls (ages 12-15) held on 13 Saturdays, 10:30AM-2PM between November 17 and May 4 at Boston’s Franklin Park Zoo. It’s full of biodiversity and citizen-science activities in classroom and outdoors, as well as field trips to local urban wildlife areas. Participants will learn to use wildlife observing platforms such as iNaturalist and DataQuest — and will take leadership roles in the Boston Area Nature Challenge next April. The cost for the entire program is $20. Apply by November 13. For more information, contact Emily Miller at 617-989-3742 or emiller@zoonewengland.com.