High Seas Science Profile picture
Nov 23, 2022 7 tweets 5 min read Read on X
This Thanksgiving, break the ice by telling your family and friends how baby octopuses sometimes ride on jellyfish like little hats...[a thread]
📸 bit.ly/2ZmNZZH ImageImageImage
It all began in 1957 when a scientist was SLAPPED by a jellyfish-wielding octopus. He published his harrowing tale in the prestigious journal science, and this is where our octopus story begins ...
study: jstor.org/stable/1710225
📸 Linda Ianniello: bit.ly/3dfSydC ImageImageImage
...Baby female blanket octopuses live in the open ocean and use jellyfish as a weapon. When they're grown, they develop a stunning cape over 6 feet long. Males are 10,000 times smaller than females and ride jellies their whole lives. BUT...
📸bit.ly/2WhINqV
They're not the only ones to ride jellyfish. Many open ocean octopuses, including paper nautilus, ride jellyfish. These amazing octos make THEIR OWN SHELL by putting their arms on their head and sweating out a little hat! AND THEY KNOW HOW TO DRIVE... Image
Paper nautilus octopus use strong jets of water to direct the jellyfish where to go, like riding a horse! And when they need to go fast...
Video by Songda Cai: bit.ly/2EGSo3n
#DailyJelly
...baby jellyfish-riding octopus ride through the ocean steering their jellyfish at breakneck speed! Look at this duo go!
Footage: Jonathan Venn at @DiveRibbon
So if you're struggling with what to talk to your family about this holiday season, just remember: half our planet is open ocean, which means there may be BILLIONS of tiny octopuses riding on jellyfish right now! Happy tgiving! [end of thread]
📸bit.ly/2MkUNPm Image

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More from @RebeccaRHelm

May 17
Wanna hear a story about an ocean animal that is WATERPROOF, sails, and why I tried to accidentally recycle a bunch of them???? [a thread 🧵]...
Image
Image
Ok, so I'm on this beach a long while ago in California. I'm walking looking for animals. Along the way, I'm picking up plastic. So I'm picking up all these random plastic shards and eventually I'm like ????? [📸 davems ] bit.ly/3exm95Q
Image
What is this stuff? So I look closer and the plastic has rings. All the shards are shaped the same even though their different sizes. Then I realize: this is not plastic. These are skeletons...
📸susanwiser bit.ly/2UX70ns
Image
Read 14 tweets
May 5, 2023
OMG it literally took someone SWIMMING FROM HAWAII TO CALIFORNIA to discover this, but wow did we find something shocking in the Great Pacific Garbage Patch... [a thread 🧵]…
New study: plos.io/3LXY3CC
It started when this guy name Ben Lecomte started swimming. He'd already freestyle'd his way from Japan to Hawaii, and now he was going to California. SWIMMING. And luckily for us… benlecomte.com Image
The mission was clear: to swim to and through the HEART of the Great Pacific Garbage Patch. To see what is ACTUALLY out there. One stroke at a time, for months. And while he swam… Image
Read 21 tweets
May 3, 2023
What's wrong with...

High-seas plastic cleanup
Deep-sea mining
Mesopelagic fishing
High-seas geoengineering?

In our new paper, we discovered a HUGE issue at the heart of these industries. And ignoring it is a risk to all of us... [a thread 🧵]
Study: bit.ly/3p4ZgyP ImageImage
@DivaAmon @ashadevos @4kgjerde @HighSeasPolicy @DrCraigMc In 2019 my colleagues and I met in Liverpool to ask a simple question: for otherworldly ecosystems, like those on the high seas, where we know almost nothing, can we estimate the risks of human activities? It seemed so simple...
(📽️surface-dwelling blue button jellies)
We focused on the most accessible high seas ecosystem, the surface, and the largest novel activity impacting it: The Ocean Cleanup. We gathered everything known and used mathematical models to fill in the gaps. We discovered...
(📽️surface-dwelling blue sea dragon)
Read 15 tweets
Apr 20, 2023
THIS IS SO COOL!
Scientists discovered that comb jellies, like this one, don't have brains with individual nerve cells. Instead, their nervous system wraps around their body & is made of ONE GIANT FUSED CELL! ...🧵
Study: science.org/doi/10.1126/sc…
📽️: bit.ly/3MVZVMZ
Comb jellies come in so many shapes and sizes, but what they all have in common is being VERY STRANGE animals. When the animal tree first started growing, comb jellies branched off before anyone else, which means they're as different as a creature can be & still be an animal.... Image
This means that they don't do things the way most other animals do. Including, apparently, the way they think. Comb jellies can see and respond to the world, just like other animals, but they are apparently doing it using a never-seen-before 'fused' nervous system...
Read 8 tweets
Feb 9, 2023
THIS IS NOT A FISH!

This is an open ocean sea slug called Phylliroe. Phyliroe swims like a fish, hunts like a fish, and eats like a fish. This is an example of "convergent evolution," when animals do similar things nature selects similar body types.
...To be more precise, the sea slug Phylliroe is a type of sea slug known as a nudibranch, and is about the size and shape of a goldfish...
... Phylliroe’s ancestors long ago left the sheltered seafloor, evolving into open ocean hunters out for blood, or, if we’re being scientifically accurate, out for jelly.

Yep, this fish-shaped nudibranch eat jellyfish, like this one...
Read 7 tweets
Jan 6, 2023
A heartfelt note from a Japanese scientist at the end of WWII, asking the arriving Allied Forces at Tokyo's marine station to spare the science lab form destruction. A US captain alerted the Naval base in Woods Hole, and the marine lab was spared.
@MBLScience @WHOI
The note was written by Dr. Katsuma Dan, who had studied in many of the marine labs mentioned. The text reads: This is a marine biological station with her history of over sixty years. If you are from the East Coast, some of you might know Woods Hole or Mt. Desert or Tortugas...
If you are from the West Coast, you may know Pacific Prove or Puget Sound Biological Station. This place is a place like one of these. Take care of this place and protect the possibility for the continuation of our peaceful research. You can destroy the weapons...
Read 5 tweets

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