Happening Wednesday

EVENTS

Shark Research at the Top of the World Biology professor George Benz discusses the important ecological role the Greenland shark plays in Arctic and sub-Arctic waters. Because of global warming, the rare predator may soon face an altered role in the Arctic seascape. Aquarium of the Pacific, 100 Aquarium Way. 7 p.m. $8. (562) 590-3100. awuariumofpacific.org.

MUSIC

Faster Pussycat This concert celebrates its greatest hits -- referring to, of course, their musical output and not the legendary in-fighting. Key Club, 9039 W. Sunset Blvd., West Hollywood. $12. 7 p.m. (310) 786-1712. www.keyclub.com.

The Watson Twins Chandra and Leigh Watson play danceable indie/folk music and are influenced by a range of sounds, including Etta James and classic Americana from their native Kentucky. Bootleg Theater, 2220 Beverly Blvd., L.A. 8 p.m. $10. (213) 389-3856. bootlegtheater.com.