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Jul 6, 2022 11 tweets 4 min read Read on X
A THREAD 🧵OF STUNNING JELLYFISH ART by Ilona Richter, from Anita Brinckmann-Voss's 1970 book on Mediterranean jellyfish...
#DailyJelly Image
Stunning jellyfish from the Gulf of Naples
Top: Jalithiara formosa
Middle: Pandes conica
Bottom: Neoturris pileata Image
Top-hat like jellyfish from Gulf of Naples
Top: Merga tergestina
Middle: Leuckartiara nobilis
Bottom: Merga galleri Image
Even though they're animals, many jellyfish have lives similar to plants. Jellies are like mobile flowers, growing from plant-like young stages called hydroids.
Top: Kollikerina fasciculata jelly & hydroid
Bottom: Bougainvillia ramosa (you can see the round jelly buds) Image
Lizzia jellyfish, some species can clone themselves to make more jellyfish (In the picture in the middle, a clone is growing off the side of the red central mouth)... Image
Top: Podocoryne jellyfish
Very bottom: Cytais terastyla jellyfish with finger-like fringes around its mouth Image
Some jellyfish are fishers! This species has suction cups on one side of its tentacles for attaching to objects, and ball-like lures on the other side for catching prey. Species: Staurocladia portmanni... Image
The sticky jellyfish Cladonema radiatum... Image
Water jellies...
Top: Zanclea costata
Bottom: Oceania armata Image
Sarsia jellyfish, which grow clones of themselves off their loooooong central mouth... Image
A showy end to the thread of jellyfish art by Ilona Richter, from Anita Brinckmann-Voss's increadible work on jellyfish of the Mediterranean.
Top: Vannuccia hydroid and jellyfish
Top: Acaulis ilonae hydroid 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
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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
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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
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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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