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#octopuses

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anna_lillith 🇺🇦🌱🐖

A new nightmare is unfolding— giant just got the green light to experiment on baby octopuses in .

Their goal? Cracking the code on captive breeding to pave the way for the world’s first .

This new lab will experiment on baby by manipulating their larval development—a critical hurdle that has prevented octopus farming from scaling up. 🐙

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Lukas VFN 🇪🇺

Male blue-lined #octopuses inject females with venom during sex to avoid being eaten theguardian.com/environment/20

Blue-lined #octopus Hapalochlaena fasciata males envenomate females to facilitate copulation doi.org/10.1016/j.cub.2025.01.

"Full-sized females are about the size of a golf ball – around two to five times bigger than their male counterparts... Sexual cannibalism is very common in #cephalopods... Males have developed distinct strategies to avoid falling prey to their mates during copulation."

photo of a small compact octopus with blue markings on yellow background
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michael

Let me tell you 'bout the birds and the bees and the octopuses:

3-Feb-2025
#Octopuses have some of the oldest known #sexChromosomes
New research at the UO shows they’ve been using one that’s been around for 480 million years

eurekalert.org/news-releases/1 #science #evolution #chromosomes #genome #sexDetermination #cephalopods

EurekAlert!Octopuses have some of the oldest known sex chromosomesUniversity of Oregon researchers have identified a sex chromosome in the California two-spot octopus. This chromosome has likely been around for 480 million years, since before octopuses split apart from the nautilus on the evolutionary tree. That makes it one of the oldest known animal sex chromosomes. The finding also is evidence that octopuses and other cephalopods, a class of sea animals that includes squid and nautiluses, do use chromosomes to determine their sex, answering a longstanding mystery among biologists.  
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anna_lillith 🇺🇦🌱🐖

Help to Stop Octopus Farming

I have narrated a beautiful and powerful animation about with my friends.

Inspired by 's A Monster in My Kitchen, Plant Based Treaty's talented animator shows us the frightening reality of the millions of destined to suffer if the multinational corporation is granted a permit to build the world's first octopus .

m.youtube.com/watch?v=o-ZLp-JV

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m.youtube.com- YouTubeEnjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube.
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earthling

Guide to Squid, Cuttlefish and Octopuses of Australasia by Mark Norman & Amanda Reid, 2020

The Australasian region is home to the greatest diversity of cephalopods — squid, cuttlefish, octopuses — in the world. Yet, we know very little about these fascinating marine animals. This book provides insights into the biology and behaviour of more than 60 species.

@bookstodon
#books
#nonfiction
#cephalopods
#squid
#Cuttlefish
#octopuses

From the Giant Squid to the deadly Blue-ringed Octopus, the secret lives of cephalopods are revealed in a highly readable form with outstanding colour images and informative text. For each species there is a distribution map and identification notes which summarise the main features to look for. While the book focuses on species found in relatively shallow coastal waters, a few of the more bizarre deeper-water species are included. Naturalists, divers, reef-walkers and anglers will find the book authoritative, yet very easy to use. A comprehensive section illustrating cuttlebones will enable beachcombers to identify most of the species they are likely to encounter.
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Benjamin Carr, Ph.D. 👨🏻‍💻🧬

Punching #Octopuses Lead #Fish on Hunting Parties
Octopuses and fish are routinely seen working together on the #ocean floor,. When an #octopus found an interesting crevice in the #coral or rock, it would cover the crack with its body, trying to capture any prey inside. The octopus’s hunting was more efficient when it was traveling with fish partners: It checked out fewer crevices, but spent more time at each one, suggesting it was finding prey to slurp up
nytimes.com/2024/09/23/science

Octopus and fish on sea floor
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