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Eunice siphoninsidiator is one of the @marinespecies.bsky.social ten remarkable new marine species from 2025, as voted for by taxonomists.
The sponge also gets a good deal out of this living arrangement. This little worm feasts on other animals like brittle stars and barnacles. Sponges are filter feeders, so too many of these types of animals on their bodies can make feeding more difficult.
These sponges are covered in sharp, glass-like structures. Researchers think that this spikey environment protects the worm from potential predators — and helps the worm stay hidden from potential prey.
A relative of the infamous Bobbit worm, it’s an ambush predator with powerful jaws. But what makes this species remarkable is that it hides inside glass sponges.
Glass sponge (left) and worm (right). A worm can also be seen inside the sponge
Some predators don’t chase their prey. They wait.
Meet the sponge ambusher worm Eunice siphoninsidiator, a deep-sea polychaete worm found around 1,000 metres down in the northwest Pacific.
Image credit: Yadong Zhou (Southern Marine Science and Engineering Guangdong Laboratory)
Thank you! There's so many great podcasts out there, but they can be hard to find. Hoping these spotlights help 🙂
Ocean background with the podcast logo
Podcast spotlight: Science and the Sea
The goal of Science and the Sea is to convey an understanding of the sea and its myriad life forms to everyone, so that they, too, can fully appreciate this amazing resource.
Dracograllus miguelitus is one of the @marinespecies.bsky.social ten remarkable new marine species from 2025, as voted for by taxonomists.
These little beauties can grip hard surfaces and move across them. This particular Dracograllus miguelitus was found on an inactive hydrothermal vent - the first time a dragon nematode has been spotted in this type of environment.
Nematodes are everywhere. In fact, they make up a huge proportion of animal life in the deep ocean. But most are simple, thread-like worms living quietly in sediments.
Not dragon nematodes.
full-body shot of Dracograllus miguelitus
close up of Dracograllus miguelitus
Even in the deep sea, some of the most intriguing animals are the smallest.
Meet the dragon nematode Dracograllus miguelitus, which was found more than 1,600 metres down on the Mid-Atlantic Ridge.
Image credit: Valentin Foulon (École Nationale d’Ingénieurs de Brest)
When Mariana from Oceano Azul Foundation was asked what they would wish for the ocean, they didn't hesitation
#MakeAWishOnAFish
Researchers analysed more than 4,500 hours of audio recordings captured from across the Hawaiian Archipelago and found 25 distinct vocalisations.
Before this, just six calls had been documented from seals in captivity.
Let's get statistically sea-nificant 🧮
🔊 25
The number of distinct calls scientists discovered Hawaiian monk seals make.
📷 Mark Sullivan, NOAA Fisheries Hawaiian Monk Seal Research Program, 2014
Photo collected under NMFS Research Permit
Text reads: “Forgive me father for I have sinned, I cut peat in Scotland to keep my family warm. Also, why is flying a lot cheaper than taking the train??”
Today’s ocean confession: cutting peat for heat = a bit of guilt.
Imperfection is human. Talking about it helps.
Share your own confession: champ.ly/U0adP8KQ
Just arrived in London for Oceanology!
Looking forward to a couple of days exploring what’s new in ocean tech and meeting lots of very interesting people doing lots of very interesting things.
Ocean background with the podcast logo
Podcast spotlight: Oceanography
Produced by Pine Forest Media, Oceangraphy is a weekly marine science podcast exploring the latest ocean research, climate science, and environmental discoveries.
What does Beatriz Naranjo wish for the ocean?
That it doesn't suffer the consequences of humanity's selfishness
¿Qué desea Beatriz Naranjo para el océano?
Que no sufra las consecuencias del egoísmo de la humanidad.
#MakeAWishOnAFish
Notebook, business cards, postard, mics, a tripdod, conference badge, and metal fish laid out on a desk
I’ll be at Oceanology International next week in London!
I’m really looking forward to spending a couple of days walking the floor, learning about new developments in ocean technology + lots of lovely conversations.
If you’re attending and would like to connect, feel free to say hello
"Thrive with life"
That's what Arianne from SeaBubbles wishes for the ocean
#MakeAWishOnAFish
ocean background with the Canadian Network for Ocean Education (CaNOE logo
Association spotlight: Canadian Network for Ocean Education (CaNOE)
The Canadian Network for Ocean Education (CaNOE) is a registered non-profit and charity dedicated to advancing ocean literacy across Canada.
a mother polar bear napping with an awake cub peeking out behind her
It's International Polar Bear Day!
Which seems like a perfect opportunity to embrace your inner polar bear 🐻❄️
Swim
Eat
Nap
Image: Merit Jensen Carr / Polar Bear Town (CC BY-NC-ND 2.0)
You're very welcome 😆
illustration of mussels with the words "Why is the ocean so powerful? Because it has lots of mussels"
Why is the ocean so powerful?
Because it has lots of mussels 🤦♀️
I'm not saying problem-led communication doesn't have its place - it does. There is no single "way" to do ocean communication, but I can't help but wonder if, instead of mostly giving people something to fight against, giving them - us - something to move towards could have value.
I've been working in ocean communications for a while now, and I spend a lot of time delving into the science of science communication, trying to learn from other forms of knowledge, and learning from others. I don't have the answer - I don't think anyone does.
Maybe some futures need to be big and expansive, connecting the ocean to things like housing, food, jobs, and wellbeing. Maybe some need to be smaller and local - one harbour, one estuary, one cove.
If we can imagine a more positive ocean future that includes us, could it change how we engage?
Could it change our relationship with the ocean, bringing it closer to us?
Could it change what actions we feel we can take - and crucially do take?
Could it help give us agency?
• Cleaner coastal water that makes our beaches swimmable and our seafood safer
• Thriving local fisheries that support jobs and food security
• Innovation and technology that create new careers in the blue economy
• An ocean that is alive with beautiful, weird, and awe-inspiring life
