4/29 - Eco-Watch: A Novel Approach to Identify the Sex of Marine Turtles - Presented by Boris Tezak, Ph.D. Candidate, FAU, as part of the Lecture Series at Gumbo Limbo Nature Center, 1801 N. Ocean Blvd., Boca Raton. Ages 14 and up, children under age 18 must be accompanied by an adult. Talks are followed by light refreshments and an opportunity to talk with the speaker. 7-8:30 pm. $5 suggested donation. Reservations: 544-8615.