Celebrate science & nature, tour museum, explore behind the scenes of research projects, learn about sheep & cattle, talk to HREC scientists, lunch, & live auction. $80. Ages 16 & under: $25. Deadline May 12 to purchase tickets, space is limited. 10 a.m.–3 p.m. Hopland Research & Extension. 4070 University Rd., Hopland. Tickets: hrec.ucanr.edu.