See hundreds of Mexican free-tail bats as they emerge at dusk during today's Houston Museum of Natural Science Excursion: Waugh Bridge Bats. Dan Brooks, curator of vertebrate zoology for the HMNS, has studied bats all over the world and he'll be your guide as you discover one of Houston's most spectacular nightly occurrences. 7:30 p.m. Waugh Bridge, Waugh at Allen Parkway. For information, call 713-639-4629 or visit www.hmns.org. $15 to $19.
Mon., Aug. 24, 7:30 p.m., 2009