Jean-François Cudennec

@limpetnerd.eurosky.social

🔬 Limpet scientist (PhD) | Marine biology, paleontology & coastal archaeology 📸 Also nature photographer https://www.instagram.com/jfcudennec?igsh=MW9mbGVpdzF0YXdrcA%3D%3D&utm_source=qr

Is there a better way to celebrate #MolluscMonday than laser-ablating archaeological limpets with very fancy, much scientific machinery? This week I'm in Mainz 🇩🇪 playing around with LIBS to explore my usual obsessions: past environments and coastal lifeways, seen through the limpet keyhole 🐚🧪🏺

🦉Since we moved, we've been blessed with a tawny owl calling from somewhere in our garden almost every night. I've always been a hopeless owl chaser and have never managed to find one myself (let alone photograph one). Any tips? Where to look, best time to go out…

I’ve been quiet lately: fieldwork on an uninhabited island, workshops with students, buying our dream house (and its forest), moving in 2 dogs + 2 kids, a baby due this winter… Not much time left for shitposting. The hardest part? Staying focused while limpets still occupy 99% of my brain.

Two kids looking at lush trees through a large windowHand-drawn plans of the houseProspection on Beniguet island, the Britton flag proudly displayed on the dGPSAn infant jawbone, dated back to early middle age
Béniguet - France

Limpets graze biofilm using their radula, a tongue like structure covered in tiny teeth, leaving specific markings on the rocks. Modelling works shows that these animals are close to the optimum when it comes to cover a surface by crawling, and without passing two time on the same spot 🦑🌊🌍🌿

Grazing marks from common limpets on a rock. 

Credit : Laetitia BeauvergerSource : https://www.pnas.org/doi/epdf/10.1073/pnas.1405966111