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Bismuth posted:Good, I always worried about that when they wouldnt let go, I didnt want to hurt them. Sea anemones have a refractory period but they're not particularly harmed either. Shake hands with a sea anemone.
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Apr 21, 2015 03:12
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Pick posted:Sea anemones have a refractory period but they're not particularly harmed either. Shake hands with a sea anemone. I think they're adorable, but I feel bad making them think they got a meal and faking them out. Sorry if any of these have (annoying) sound I dont have it on my laptop but sand dollars are weird in motion https://www.youtube.com/watch?v=iSA09qg2BMY these guys are weird too https://www.youtube.com/watch?v=cZcomBnNKXg https://www.youtube.com/watch?v=H25Rpls7iM8
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Apr 21, 2015 03:29
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Pick posted:not to get all Peter Singer, but you mention things like longterm retention of aversion behaviors and etc., and this kind of thinking is why we stopped acnowledging pain in babies, and therefore stopped anesthetizing babies for surgery. then we realized oh whoops, actually maybe babies can feel pain and maybe we shouldn't cut them open with scissors and stuff unless they've been numbed maybe Ahh, I was actually referring to some experiments with very simple molluscs that I read way back and can't find right now. Point was, most animals with simple nervous systems are not really capable of retaining memories for long periods of time on account of their limited neuronal capacity. Not a lot of space to hold things when you've only got a couple of thousand neurons. It absolutely cannot be extrapolated to anything involving a central nervous system. What I'm saying is that the capacity for animals with simple nervous systems to experience pain is like that of a brain-dead person; They might very well react to you poking their finger with a needle, but it's just an autonomous spinal cord directed reflex, they don't experience "pain" as we as conscious creatures conceive it. Obviously this whole question is a bit irrelevant to any real scientific questions we might ask about the nervous systems of echinoderms, but I find it helps me not to empathise with the things I need to cut up in the animal physiology lab courses  Don't even get me started on behaviorism. That whole "brain is a black box we can't study it" poo poo was a terrible terrible period of time in the history of neuroscience and we still haven't fully recovered from the damage it caused. Motherfucking Chinese Room as a model for intelligence AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA gently caress gently caress gently caress gently caress
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Apr 21, 2015 12:37
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Bismuth posted:I think they're adorable, but I feel bad making them think they got a meal and faking them out. I am cool with the crinoid but no gently caress that sand dollar that is not an ok way for things to be
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Apr 21, 2015 13:51
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Pick posted:
I'm not even kidding. That is like a baby Shoggoth. There must be a breach in the Mariana Trench.
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Apr 21, 2015 17:58
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Gilok posted:I am cool with the crinoid but no gently caress that sand dollar that is not an ok way for things to be u sure ur ok with them   
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Apr 24, 2015 01:28
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what the gently caress is that thing in the bottom pic?
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Apr 24, 2015 01:42
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ROFLburger posted:what the gently caress is that thing in the bottom pic? the thing that crawls on you while you're asleep
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Apr 24, 2015 01:43
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ROFLburger posted:what the gently caress is that thing in the bottom pic? it's a crinoid, among the most gross and weird of echinoderms, next to brittle stars there are deffo cuter echinoderms out there. for example, the sea pig 
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Apr 24, 2015 01:47
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how do these idiots find food at the ocean floor? they just crawl around and touch stuff until they find dinner?
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Apr 24, 2015 01:51
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ROFLburger posted:how do these idiots find food at the ocean floor? they just crawl around and touch stuff until they find dinner? p much
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Apr 24, 2015 02:02
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Everything on Earth that gets flushed or dies or rots or whatever eventually probably winds up at the bottom of the ocean, pretty much. They eat fish poop and seaweed scraps and snail garbage, and probably a lot of toxic crap we throw away too.
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Apr 24, 2015 02:48
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They also tend to have absurdly low metabolisms compared to, say, mammals.
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Apr 24, 2015 02:49
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Pick posted:it's a crinoid, among the most gross and weird of echinoderms, next to brittle stars Dont badmouth crinoids they're graceful majestic creatures. If you want gross and weird check out the amazing living fractal the basket sea star
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Apr 24, 2015 02:57
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I already said how I feel about basket stars!!!!! i don't like them!!!!!
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Apr 24, 2015 03:16
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 basket stbarf  Gorgonocephalus caputmedusae Pick fucked around with this message at 03:25 on Apr 24, 2015 |
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Apr 24, 2015 03:22
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I am going to shove one up my rear end.
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Apr 24, 2015 03:29
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Hate Fibration posted:I am going to shove one up my rear end. It already looks like a living colon scraping.
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Apr 24, 2015 03:30
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ROFLburger posted:how do these idiots find food at the ocean floor? they just crawl around and touch stuff until they find dinner? Many of the classic sea stars are active hunters. They have smell as well as touch to home in on stuff. It's just that the stuff they hunt are clams and scallops, ie even less mobile. Sand dollars are pretty much a living roomba though. The ocean is really, uh, efficient that way. There are things that eat the poop of things that eat poop.
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Apr 24, 2015 03:35
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https://www.youtube.com/watch?v=bBj7P3jnMDk basket staaaars
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Apr 24, 2015 06:45
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I'll take one, deep fried.
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Apr 24, 2015 09:09
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Ugh basket stars are freaky little shoggoth larvae. Are there any urchins that approach that level of nastyness or are sea stars just special like that?
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Apr 24, 2015 16:14
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Basket stars are pretty special in their grossness. Here's a sea urchin eating though:   (Echinoderm attacks echinoderm!)    (sea cucumber)  Pearlfish live in sea cucumber butts
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Apr 24, 2015 16:33
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Pick posted:
mandatory googling after seeing that posted:However, some species are known to be parasitic on sea cucumbers, eating their gonads and living in their anal pores 
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Apr 24, 2015 16:39
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https://www.youtube.com/watch?v=_y4DbZivHCYPick posted:
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Apr 24, 2015 16:41
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hot
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Apr 24, 2015 16:41
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Apr 24, 2015 16:46
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So I was wondering what kind of hosed up poo poo might be on Europa or other icy moons. Basket stars already look like some otherworldy monster that'd eat a probe sailing around.
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Apr 24, 2015 17:48
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Actually quite a few humans, even in developed nations (between 10-20%) with almost no regard to demographics, have pinworms living in their asses, which poke their little heads out of your anus when you sleep to lay eggs. The main symptom is an itchy anus.
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Apr 24, 2015 22:28
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