It's a nice little video of a 6-gill taken slightly
beyond SCUBA depth at 3000 feet.

http://www.60secondscience.com/archive/science-videos/video-17foot-long-deepsea-
shar.php?sc=WR_20080212

Enjoy...

It's a strange thing to me, but nearly every time I mention that
I dive to non-divers, one of the first questions is, "But aren't
you afraid of SHARKS?" They just never seem to get it that seeing
a shark is generally a highlight of a dive. After all, in nearly
250 dives I've seen a total of 3 sharks that were actively swimming,
a 3 metre Grey Reef Shark and a 1.2 Metre White-Tipped Reef Shark
on the Great Barrier Reef and a 3 Metre 7 gill Shark in the
"Lonsdale Canyon" at about 40 metres down in the mouth of Port
Phillip Bay here in Melbourne. Not exactly a big "hit rate",
but then I wasn't trying to attract them. Interestingly, the
Captain of the Spoilsport had a trick that he reconned would
attract sharks. He took a plastic drink bottle and crumpled it
underwater so that it made crackling noises.

I was with him at Lighthouse Bommie when I did it. I cannot
say absolutely that he was successful, but it did seem as if
there was something big out there just at the limits of the
visibility.

Has anyone else heard of this trick? Does it work?

-Don