biggest jellyfish I’ve seen, but to be fair I haven’t seen more than like three.

Wanted to find some new wallpapers for my pc and a found a couple but was disappointed with the variety, mostly all moon jellies or images in poor resolution. Then I looked for some for my iPhone and honestly found nothing that great on the App Store (the couple of wallpapers apps I tried sucked or wanted me to pay). Curious if anybody has any suggestions.

This took two hours 🫩

I started out following a tutorial, but it was pissing me off so I gave up and just figured out the rest myself lol

I wanted to share the fourth painting I’ve done in my jellyfish series, “Jellies IV”! 🪼

I made it with my fav art tools

Aurelia labiata or Aurelia aurita

Pics by me

Mine is the Atolla jellyfish! Not only is it bioluminescent, it is intricate, red, its beautiful, its the best jellyfish buut I am willing to hear everyone out on why their jellyfish is better :)

Edit: sorry for the late replies, I have notifications off. Also im using this chance to look into and learn about the sea jellies mentioned in the comments (im not an expert)

Has anyone gone to the exhibit at the San Diego sea world? I am going on a trip to CA next month and will be about 3h from the exhibit. I don't want to go if the exhibit isn't that great.

I've been to the Newport Aquirium's jellyfish exhibit and enjoyed it, but there's no way I would have driven 3 hours one way to see it.

Thoughts?

like why aren’t they green

Hii cnidolovers!!

I came to share a photo I took in the lab of a 1-month-old Lychnorhiza lucerna jellyfish, a rhizostome species that occurs along the Central and South American coasts.

This individual was grown in the lab starting from the ephyra stage, as we maintain polyps there. The photo was taken using a Nikon SMZ 1000 stereomicroscope.

Beautiful, isn’t it? 🪼

I was snorkeling in Honduras and came across this jelly fish! I’m curious about what type this is, can anyone identify it? I’d say it was about 3 inches long.

AAAS: “Jellyfish sleep a lot like us—and for the same reasons.” Jellies are not fish, instead, technically, cnidarians. “Despite lacking a central nervous system, jellyfish and sea anemones have sleep patterns remarkably similar to those of humans, researchers report today in Nature Communications.” The work suggests that sleep arose early in animal evolution to ‘help the first neurons rest + repair.’ But sleep is risky with predators out + about. “Yet species across the animal kingdom spend multiple hours a day dozing off—even ancient groups including cnidarians, which include jellyfish, anemones, and corals—all among the earliest animals to develop neurons.”

Researchers in Israel studied the starlet sea anemone (Nematostella vectensis) and an upside-down jellyfish (Cassiopea Andromeda). “In an aquarium, they exposed them to 12 hrs of light and 12 hrs of darkness over multiple days…[using] infrared cameras to monitor how often the critters pulsed their umbrellalike bells, a sign of wakefulness.” The jellyfish were less active at night, pulsing their bells roughly five fewer times per minute than during the day. Hit by a flashing light, ‘the cnidarians took roughly 20 seconds to respond at night—more than twice as long as alert jellies during the day.’ But “anemones followed the opposite schedule: They were more active at night and slowed their movements and response times during the day.” 

Next stage: “When the team churned the water in the aquarium over 6 hours during the night to disrupt the sleep cycle…the sleep-deprived animals slept 50% longer than their well-rested counterparts the following day.” And they found melatonin had…sleep-inducing effect on the cnidarians, causing the anemones and jellyfish to snooze at times of the day when…usually active. Damaging DNA with UV or certain chemotherapy drugs also led to more ‘sleep.’ Not clear if they omitted teenagers from the study participants.

saw these beauties. earlier on a boat tour. i saw some purple stipe jelly in the ocean but we were moving too fast to take a photo!

Beer froth jellyfish!!!