#fish research by @danielgeldof.bsky.social who used #CTscans to study the #rockheadpoacher.

This Bizarre Fish Has a Hole in Its Head. The Creature Might Use It Like a Drum to Rock Out The rockhead, or deep-pitted, poacher may use its ribs to beat the inside of its head cavity to communicate with other creatures, according to a new study

Meet another #ocean weirdo, the #rockheadpoacher.

"The tiny creature is covered in bony armor and has a lumpy, rock-shaped head with a relatively large pit."

www.smithsonianmag.com/smart-news/t...

Incidentally, here's my beloved Rockhead...

And his brain.

And his CNS up to SN4.

And his semicircular canals.

And the supporting vasculature.

#RockheadPoacher #FishBothering #NanoCT #ScanAllFishes