For those who (like me) had problems viewing the embedded vid over at BBC, check this blog entry at the neurophilosophy site instead. It features an embedded youtube version (ie. flash) of the same video. (BTW, it includes a neat vampire squid video as well).
I now see that I had overlooked Phil's second post. Looks like there are actually several videos then, -the NewScientist story links to three different ones (and the resolution is better than in the other ones I've seen too). Or are these just outtakes from the video at BBC (which I can't play) or what? Don't want to miss anything..
Ok, if anyone would like the full report Hunting behaviour and bioluminescence of a large deep-sea, eight armed squid - Taningia danae, click here. This is straight from the pages of the Royal Society website, but be warned, there is a lack of double-decker bus images though.
Before I read the article I had no idea that this was the first time a living Taningia had ever been filmed in its natural habitat. I think we should start a dedicated Dr Kubodera tribute thread!
The article concludes with some very interesting speculation about the hunting strategy of Taningia. As it lacks tentacles, the animals feeding strategy appears to be to rush at its prey whereas most other squid would move in but stand off, using tentacles to sieze and draw prey in and then ensnare with their arms. Taningia has been forced to adapt an entirely different, and highly energetic, attack using arm photophores to dazzle prey and use the image generated to home in. Fascinating stuff.
Cuttlegirl, you question's got me to thinking about the lost tentacles too, namely, how do the brains of organisms that lose specialized limbs during their life cycles adapt to the loss, especially if another set of specialized limbs assumes a role similar to the lost ones? Do young Taningia use their tentacles to range targets?
Taningia danae is included in the family of eight-armed squid (Octopoteuthidae) because while the juveniles have two tentacles in addition to the eight arms, by the time they mature, the tentacles are reduced to rudimentary filaments or disappear altogether.