C is For Cookie-cutter Shark and that's good enough for me.

Isistius brasiliensis or Cookie-cutter Shark is a savage little beast that gets its name from the circular puncture wounds it leaves in it's prey. It is only about 20-inches long but it can parasitically take down larger prey just by creeping it out. The underside of the Shark is bioluminous--it glows--which can attract fish at their own doom. It bites down on prey, often a Whale, Dolphin or large fish like a Tuna and rotates it's head like a circular drill bit.

This Pygmy Sperm Whale was so creeped out by a Cookie-cutter Shark that it beached itself.
[waltonsun]

A female Pygmy Sperm Whale and her calf were found beached at Lakewood beach in Florida's panhandle on Friday. They were picked up and transferred to Gulf World Marine Park for "rehabilitation," but by Sunday both Whales had died from their trauma. At least they won't have to spend the rest of their lives performing for drooling high-functioners at a marine theme park.

These are Cookie-cutter bites on a Dugong.

Mmmm...Cookies...

--Sharky

technorati tags: Sharks, Cookie-cutter Shark, Dugongs, Whales, Pygmy Sperm Whale, Florida