A hunk o' burnin' lamprey love

New research shows that male sea lampreys (that's a sea lamprey mouth pictured above) entice females into reproduction with the help of a special bump of tissue. No, not that. Get your mind out of the gutter. The lamprey's "rope tissue" is fascinating, writes Science Codex, because it's made of heat-generating fat cells similar to the kind found on mammals that maintain their own internal body temps — something the lamprey can't do.

Image: Sea Lamprey Mouth, a Creative Commons Attribution (2.0) image from usfwspacific's photostream



  1. As a kid, catching lamprey in a net during the smelt runs always freaked me out.  Perhaps I was bitten by a radioactive one, because I seem to generate heat like crazy.

    Had a comment that featured a photo of a lamprey mouth deleted once…   I think that it was assumed to be a toothed vajayajay (since that was the gist of the comment to which I was replying).

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