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How do they eat? I want to see a timelapse of something getting digested inside one.
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Dec 1, 2017 05:10
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posting in pity pick thread
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Dec 1, 2017 05:10
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Pick posted:A human egg can split and develop into two identical twins but we don't consider them the same organism. It is fun to talk about people who have had split brain operations https://www.youtube.com/watch?v=aCv4K5aStdU and then realize maybe he has two people living inside him, two brains
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Dec 1, 2017 05:14
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Dzhay posted:So why are we calling these zoöids different organisms? It sounds like an egg develops into one entire man o' war. Not really. Imagine that each zooid is an individual "person," with their own set of abilities- one "person" in the collective learns to be good at digesting, another to be good at stinging, etc. Each "person" in the collective has the potential to do any of the jobs- they have the requisite DNA to develop in that direction- but shortly after birth they pick a particular specialty and stick with it for the rest of their life.
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Dec 1, 2017 05:17
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Cnidarians are so cool to watch! I used to sit and watch these guys when I was stationed in Port Angeles, WA., instead of doing work, but it was all worth it. I couldn't believe how massive they got!  I did get stung by their east coast cousins once as a kid, and since then swimming in the ocean hasn't been as carefree.
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Dec 1, 2017 05:19
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AbusePuppy posted:Not really. Imagine that each zooid is an individual "person," with their own set of abilities- one "person" in the collective learns to be good at digesting, another to be good at stinging, etc. Each "person" in the collective has the potential to do any of the jobs- they have the requisite DNA to develop in that direction- but shortly after birth they pick a particular specialty and stick with it for the rest of their life.
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Dec 1, 2017 05:22
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Skypie posted:I thought jellyfish just had one hole that was both a mouth and a butt He was referring to a tunicate.
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Dec 1, 2017 05:34
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Labes for days posted:You forgot to mention that in addition to looking awesome, G. atlanticus also feeds on Portuguese man o' war and stores the stinging cells in their own body. I was sort of going to spring this later for added thread content, but yeah they are fuuuuckin cooooool
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Dec 1, 2017 05:35
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They are the most badass of all nudibranchs.
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ContraBoss posted:Cnidarians are so cool to watch! One time riding a ferry somewhere in Seattle area there were gerbillions of giant jellyfish that looked like that in the water, like giant basketball sized ones. For at least ten minutes. So many and so big.
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Dec 1, 2017 05:39
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ContraBoss posted:Cnidarians are so cool to watch! I'm not that fond of conventional jellies actually, although their nervous systems are fascinating.
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Dec 1, 2017 06:09
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Bluebottles are terrifying Last time i went to Moreton Island in Queensland, the entire seafacing beach of the island was covered in thousands and thousands of them. They were all clumped up and driving a 4x4 up the beach sounded like a popcorn machine. Scary to think that if I'd gone a little later, all those stingers would have been buried just under the sand, ready for me to tread on them.
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Dec 1, 2017 06:13
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Thank you for making this neat thread. I think jellyfish are gorgeous. Here is one I drew with eyeshadow and nail polish a few years ago.
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Dec 1, 2017 14:28
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Very nice. Good use of light.
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Dec 1, 2017 14:29
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Spinster posted:Thank you for making this neat thread. I think jellyfish are gorgeous. Here is one I drew with eyeshadow and nail polish a few years ago. Oh wow speaking of sea nettles! Very naice 
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Dec 1, 2017 14:32
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And i have one jellyfish story. For a couple of years I dated a guy that had 2 little kids. One time I took them all to Point Defiance Zoo, a decent zoo in Tacoma. It's near Puget Sound so their sea life exhibits were always the best part. One of the buildings had dimly lit hallways where you walked along surrounded by large tanks on either side with ocean creatures inside, octopus, eels, etc. The kids were like 4 and 6 and hadn't seen much of this stuff at all, sadly. We reached the part of the hall that had jellyfish, and there was eerie music piped in that was quite effective paired with the ghostly white clear blobs pulsating up and down behind the glass. The youngest was on his dads shoulders staring in, fascinated, so we watched for a while. When we left I talked to him in the car and asked him what he liked so much about the jellyfish and he said with wide eyes, "the sounds they make!" 
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Dec 1, 2017 14:48
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do people eat them
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Dec 1, 2017 14:52
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Who What Now posted:How do they eat? I want to see a timelapse of something getting digested inside one. I don't have an answer for this, but Golden Jellyfish live in a lake with no predators and lost their stingers over time. They cultivate algae in their bellies, and swim around the lake keeping pace with the sun to make sure it gets plenty of light thus keeping themselves fed.
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Dec 1, 2017 14:55
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Jellyfish are basically corals with a passion for adventure.
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Dec 1, 2017 15:07
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Pick posted:That's a non-free-swimming (sessile) tunicate, my man, aka a "sea squirt". Vertebrates are descended from ancestral larval tunicates (really). That thing is waayyy more closely related to you than, for example, a spider. Adult humans are also usually sessile and spineless.
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Dec 1, 2017 16:00
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good thread!
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Dec 1, 2017 16:05
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After just watching blue planet ii, I am a qualified expert who can inform you that manowars digest their food with specialised chemicals and enzymes and poo poo to break it down and absorb the nutrients. Also chiming in with the bluebottle sting crew, got me on the forearm while swimming. It wasn't that bad, kind of like 10 bees had stung me around the same patch of skin. I dunno tho maybe there's different types and the severity of stingy varies
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Dec 1, 2017 16:49
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Thank you for trying to post cool animal info again, Pick. Voted 5.
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Dec 1, 2017 17:15
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What about the predatory tunicate? 
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Dec 1, 2017 17:25
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AbusePuppy posted:Not really. Imagine that each zooid is an individual "person," with their own set of abilities- one "person" in the collective learns to be good at digesting, another to be good at stinging, etc. Each "person" in the collective has the potential to do any of the jobs- they have the requisite DNA to develop in that direction- but shortly after birth they pick a particular specialty and stick with it for the rest of their life. Sounds like stem cells. Men are the true jellyfish, it would seem...
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Dec 1, 2017 17:34
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a bone to pick posted:Thank you for trying to post cool animal info again, Pick. Voted 5. Thanks I always forget about the voting thing.
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Dec 1, 2017 17:46
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As for what makes colonial organisms 'colonial,' the short of it is that the cells that make up a volvox or tunicate are all their own 'animal.' In slime molds, each unicellular creature moves around and does stuff largely independently, and it just so happens that they can glob together with each other for survival and reproduction when they feel like it. Tunicates make clones of themselves that, while capable of surviving on their own, can instead 'program' themselves into a collection of stinging cnidocysts and water-collecting siphons. Also, did scientists ever figure out what was causing that explosion in jellyfish off the Asian Pacific coast? Last I checked, it was so bad that coastal fishing boats would bring up nets that looked like a Ghostbusters prop.
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Dec 1, 2017 17:55
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Pick posted:No like they're just flavorless rubber. I even think tripe is okay and jellyfish was like eating rubber bands in your food. I've had dried jellyfish that I think was cured in brine, too. It just tasted like the sole of a Chuck Taylor with pretzel salt all over it.
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Dec 1, 2017 21:54
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ChickenHeart posted:Also, did scientists ever figure out what was causing that explosion in jellyfish off the Asian Pacific coast? Warming oceans was my understanding. It’s also why we’re getting more deep sea creatures popping up near the surface. Anyone else feel like jellyfish are probably incredibly common on other hospitable planets? They just seem like the kind of mindless thing you’d run into everywhere. Primitive and adaptable.
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Dec 1, 2017 23:43
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EorayMel posted:What about the predatory tunicate? Tunicates are cool as heck and are not actually similar to cnidarians at all, it's actually weird how you can't tell a lot about relatedness of animals overall by their shape. Like those things above are way more genetically similar to you than an octopus. "but an octopus has eyes!!" Lots of poo poo has eyes, they've evolved independently a bunch of times.
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Dec 2, 2017 06:27
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this thread was actually good. *woosh* give life thread
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Dec 8, 2017 18:23
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Cnidarians are cool and bizarre and especially the colonial aspect of the Siphonophores that I didn't know about. Thanks for the info Pick. You'd think someone would have convinced some billionaire that researching these things was the path to eternal life by clone-growing their organs internally or something.
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Dec 8, 2017 18:33
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poorlifedecision posted:Cnidarians are cool and bizarre and especially the colonial aspect of the Siphonophores that I didn't know about. Thanks for the info Pick. You'd think someone would have convinced some billionaire that researching these things was the path to eternal life by clone-growing their organs internally or something. ring ring peter thiel
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Dec 8, 2017 18:34
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Post more of the most deadly ones
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Dec 8, 2017 18:40
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How can we weaponize these things?
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Dec 8, 2017 18:42
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gizmojumpjet posted:How can we weaponize these things? Potato guns
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Dec 8, 2017 19:03
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