For National Geographic photographers, praise is not something that’s difficult to come by. But Brian Skerry’s pictures are especially arresting. The Natty Geo photographer recently spent a week aboard Aquarius Habitat, a 65-foot-underwater version of the space shuttle located 5 miles off the Florida coast. Skerry’s shots of seemingly smiling whales, impossibly colorful fishies, and a shark feeding frenzy capture the general creepy weirdness of life below. Then there’s this portrait I’ve got here of Skerry himself, which reveals the brainy photog to be a totally ’80s rock star. Sure, the shirtless pose makes sense in the water, but what’s with the headband, Brian? Meet a variety of strange sea creatures when Skerry presents “Shipwrecks & Sea Monsters,” an illustrated lecture based on his photographs for a September National Geographic article, at 7:30 p.m. at the National Geographic Society’s Grosvenor Auditorium, 1600 M St. NW. $16. (202) 857-7700. (Dave Nuttycombe)