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Re: Great in the air, not so good underwater

On Thursday, December 7, 2006, at 10:00 PM, jrc wrote:

Hatchet fish fly by means of flapping flight, but not very well (or very far).

Good point; though the last I heard that classic bit of strangeness may not be true after all. I'll check on it, but I'm pretty certain that someone has finally done a kinematic study on hatchet fish leaps and confirmed that their trajectory is a simple ballistic path. I saw a reference to it in a review paper (either Vogel or David Alexander, I think). In any case, hatchet fish swim mostly by caudal action, so they wouldn't be an amphibious flyer in the way that I had in mind, but I should have been more specific.