I totally forgot @KateShaw released new episode today, and I just found out it's about cephalopods ... the other other cephalopods.
listening now.
strangeanimalspodcast.blubrry.netEpisode 427: The Other Cephalopods | Strange Animals Podcast
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#molluscs
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@mads The animal that most blew my mind when I found out about it was the sea swallow.
I'm not sure how I'd not heard about these before.
Just look at it!
They float upside-down under the surface of the open ocean, scooting about looking for food. They eat things like Portuguese man o' war and steal the stinging nematocysts to use for their own defense.
And, they're just crazy-levels of elegant.
iNaturalistSea Swallow (Glaucus atlanticus)Sea Swallow from Henderson Bay on February 11, 2016 by tangatawhenua. Is it a fish? Is it a slug? Is it a fishy anemone? I do not have a clue what this is!
It is ab...
Shells - leave them by the shore
"This summer, please leave the sea shells by the seashore. Someone needs that shell more than you. For native wildlife, both occupied and unoccupied shells provide important shelter and sources of calcium and grit."
"If you absolutely must pick something up and take it home, please pick up some of the vast amount of plastic found on Australian beaches."
>>
https://theconversation.com/this-summer-please-leave-the-sea-shells-by-the-seashore-243157
#shells #seashells #collecting #beach #ecosystems #tourism #hoarding #BeachCombing #marine #wildlife #habitat #MarineParks #molluscs #shellfish #plastic #waste #TakeAway #HolidaySeason
@animalculum@scholar.socialWhat a #mollusc shell and fiber optic cables have in common https://www.npr.org/2024/11/23/nx-s1-5199634/heart-shaped-mollusc-shell-resembles-fiber-optic-cables
Heart cockle shells transmit sunlight to photosymbiotic algae using bundled fiber optic cables and condensing lenses: Dakota McCoy et al. https://www.nature.com/articles/s41467-024-53110-x
"the structure of the #HeartCockle's shell operates as its own kind of fiber #OpticCables to channel light to the #algae living inside it"
@alcootatooter no no no that was superhelpful 
I really had no idea those #oceans creatures exist!! When I sat down after visiting the beach looking at those pretty tiny pieces, they were all around the washed up lobsters, and googling the images did not return anything, so I made an assumption and am very happy to learn what they actually are!! Now I will look out for the whole #mollusc :D they washed up on the beach with a flood of bluebottles, and seeing these #marine #molluscs are from QLD I guess the warmer water might have brought them along...
@animalculum@scholar.socialMathematicians discover new class of shape seen throughout nature https://www.nature.com/articles/d41586-024-03099-6
Soft cells and the #geometry of #seashells https://academic.oup.com/pnasnexus/article/3/9/pgae311/7754698
"Soft cells — shapes with rounded corners and pointed tips that fit together on a plane — feature in onions, #molluscs and more... Studying the #nautilus was the turning point of the work"
Half-a-billion-year-old spiny slug-like fossil reveals the origins of #molluscs
Shishania aculeata reveals that the most primitive molluscs were flat, shell-less creatures covered in a protective spiny armour made from chitin bristles.
News · Half-a-billion-year-old spiny slug reveals the origins of molluscsA team of researchers have made an astonishing discovery of a new species of mollusc that lived 500 million years ago. The new fossil, called Shishania aculeata*, reveals that the most primitive molluscs were flat,
if only there was a Bohemian Wiwaxia, a Cedar Wiwaxia, and a Japanese Wiwaxia.
Here are a couple of #photos from the last days that I haven't gotten around to editing and uploading.
Adventures of a baby snail called Rainbow
as “Robinson Crusoe” - stranded on an island, surrounded by water.
Added some calcium carbonate (similar to chicken egg shell) for nutrition.
150 frames captured at 30-second intervals. Played back at 15 frames per second! 
#fungifriends #lichen #fungi #algae #moss #photography #nature #biology #trees #winter #mosstodon #video #mollusk #molluscs #stickoftheday #timelapse #timelapses #LichenSubscribe
GIF
Adventures of a baby snail called Rainbow “Suicide Blonde”
#10X speed!
#fungifriends #lichen #fungi #algae #moss #photography #nature #biology #trees #winter #mosstodon #video #mollusk #molluscs #stickoftheday #timelapse #timelapses #LichenSubscribe
GIF
It's #snail season! :D
I got out of my house for a nightly walk and was greeted by these beautiful friends, so I took some phone photos.
Leopard slug (Limax maximus)
Day 30 of #invertober #invertober2023
This species has a very unusual and distinctive mating method, where the pair of slugs use a thick thread of mucus to hang suspended in the air from a tree branch or other structure.
#slug #slugs #molluscs #gastropoda #gastropods #invertebrates
Day 30 of #invertober #invertober2023
This species has a very unusual and distinctive mating method, where the pair of slugs use a thick thread of mucus to hang suspended in the air from a tree branch or other structure.
#slug #slugs #molluscs #gastropoda #gastropods #invertebrates
Striped pyjama squid (Sepioloidea lineolata)
Day 28 of #invertober #invertober2023
The striped pyjama squid is not a squid at all—it’s part of the family Sepiadariidae, which is a group of cuttlefish. During the day, striped pyjama squid will bury into the sand to hide from potential predators. They keep their yellow-ish eyes above the sand, which allows them to keep watch for delicious fish or crustaceans to eat.
#squid #cuttlefish #molluscs #marinelife #marinebiology #invertebrates
Day 28 of #invertober #invertober2023
The striped pyjama squid is not a squid at all—it’s part of the family Sepiadariidae, which is a group of cuttlefish. During the day, striped pyjama squid will bury into the sand to hide from potential predators. They keep their yellow-ish eyes above the sand, which allows them to keep watch for delicious fish or crustaceans to eat.
#squid #cuttlefish #molluscs #marinelife #marinebiology #invertebrates
Blue glaucus (Glaucus atlanticus)
Day 14 of #invertober #invertober2023
They only grow to about 3cm in size. They absorb toxic chemicals from their prey (Portuguese man o' war) by eating the nematocyst, which is a stinger cell where the poison is stored. So while they’re pretty to look at, don’t pick them up!
#seaslug #molluscs #marinebiology #marineinvertebrates
Day 14 of #invertober #invertober2023
They only grow to about 3cm in size. They absorb toxic chemicals from their prey (Portuguese man o' war) by eating the nematocyst, which is a stinger cell where the poison is stored. So while they’re pretty to look at, don’t pick them up!
#seaslug #molluscs #marinebiology #marineinvertebrates
