The Keys History & Discovery Center has a live lecture on “Environmental Threats to Florida’s Iconic Crustaceans,” at 6 p.m. on Wednesday, May 13. To participate, visit http://www.keysdiscovery.com/lectures to register. Viewers will be able to interact with the speaker and participate in a question-and-answer session. Access is available via computer or by downloading the mobile app. For information, call 305-922-2237 or e-mail email@example.com.