New paper out by Dieter Korn and Martina Aubrechtová on a strange group of #Carboniferous #orthoceratoid #cephalopods!

https://doi.org/10.5852/ejt.2026.1048.3231

#FossilFriday #Palaeontology #taxonomy

Here one of my favorite fossil #cephalopods for #FossilFriday:

Pentameroceras mirum from the #Silurian of #Gotland! Those narrow slits of the shell were likely where arms or eyes would stick out!

💁🏻‍♀️ ICYMI: 🐙🩺 How do you perform a medical checkup on a creature that's strong, slimy, and smart enough to solve puzzles?

Animal caregivers like René Carbajal at the #MontereyBay #Aquarium rely on target training to provide stress-free enrichment and health checks for Chica the Giant Pacific Octopus.

👉 Learn more: https://thekidshouldseethis.com/post/chica-giant-pacific-octopus-monterey-bay?utm_source=mastodon&utm_medium=social&utm_campaign=new_content&utm_content=chica-octopus

#animals #nature #wildlife #cephalopods #marinebiology #biology #tksst #video

🐙🩺 How do you perform a medical checkup on a creature that's strong, slimy, and smart enough to solve puzzles?

Animal caregivers like René Carbajal at the #MontereyBay #Aquarium rely on target training to provide stress-free enrichment and health checks for Chica the Giant Pacific Octopus.

👉 Learn more: https://thekidshouldseethis.com/post/chica-giant-pacific-octopus-monterey-bay?utm_source=mastodon&utm_medium=social&utm_campaign=new_content&utm_content=chica-octopus

#animals #nature #wildlife #cephalopods #marinebiology #biology #tksst #video

Giant Pacific Octopus- New England Aquarium

#boston #octosaturday #cephalopods

🦑🔦 To us, this #cuttlefish looks plain. But to another cuttlefish, it’s putting on a flashy show for a potential mate.

Scientists found these #cephalopods use their arms to literally twist light waves, creating high-contrast patterns that are invisible to the human eye.

👉 https://www.sciencealert.com/cuttlefish-literally-twist-light-to-attract-a-mate-study-finds

#biology #physics #marinebiology #science #evolution #nature #ocean #stem #education #wildlife #fish

Cuttlefish use polarized light to create a dramatic mating display invisible to humans https://phys.org/news/2026-01-cuttlefish-polarized-display-invisible-humans.html

Transmission through muscle tissue shapes polarization signals during cuttlefish courtship https://www.pnas.org/doi/10.1073/pnas.2517167123

"#cephalopods, like #cuttlefish, have the ability to perceive the polarization of light. If some light waves are oriented vertically and others are oriented horizontally, cuttlefish differentiate these in a similar way that humans might differentiate blue and red light."

What’s the world’s smallest cephalopod? That would be the southern pygmy squid (Xipholeptos notoides). Growing only about 0.9 in (2.5 cm) long, this diminutive critter can be found in the waters of the Southwestern Pacific near Australia. During the daylight, it clings to sea grass and stays out of sight. By night, it hunts for prey including small crustaceans like shrimp. Its lifespan is only about 150 days.

Photo: Daniel Kwok, CC BY-NC-ND 2.0, flickr

via amnhnyc

#photography
#cephalopods

Argonauta Argo (1851) by Jean Baptiste Vérany, from Mollusques méditeranéens.

Source: Smithsonian Libraries and Archives / Internet Archive

Available to buy as a print.

https://pdimagearchive.org/images/4eab67b4-9820-4435-9d03-806e687bc585

#cephalopods #zoology #chromolithography #squid #art #publicdomain

🐙🌊 MBARI researchers captured rare footage of a seven-arm #octopus feeding on a #jellyfish 700 meters below #MontereyBay, marking only the fourth time they've observed this species in 40 years.

The massive #cephalopods can reach 4 meters long and get their name because males hide their eighth arm beneath their eye, creating the appearance of having only seven arms.

👉 https://www.discovermagazine.com/rare-footage-reveals-the-mysterious-seven-arm-octopus-eating-its-prey-48420

#ocean #wildlife #science #nature #marinebiology #animals