For shark lovers, National Geographic Channel is offering a cool alternative to the Discovery Channel's Shark Week. Friday night (with repeats at other times), it's airing a segment called "Sharkville" on its Wild series. The show highlights new findings that great white sharks are hunting successfully at night -- complete with infrared video footage to document the work.
There's a preview video and photos at the National Geographic Channel site, and also a video clip of the sharks at night as part of an interview with New Zealand shark researcher Ryan Johnson by Bill O'Reilly.
Most interesting is Johnson's conclusion that the sharks are able to prey on seals at night because of the light spilling onto the water from coastal development around Mossel Bay, where he did his work.