"Things You Wouldn't Know If We Didn't Blog Intermittently."
It's actually a diving beetle larva : https://www.sciencephoto.com/media/720763/view/diving-beetle-larva-sem
Wow. Thank you, unknown. I totally revised the post.
it kind of looks like an AT-AT walker from star wars? or maybe the walkers were modeled after these?I-)
Konrad Lorenz (how seldom do we hear that name today?) said that the bite of a Dytiscus larva is one of the most painful things in the natural world.