@Br3ttM
The light from a collapsing cavitation bubble is sonoluminescence, so shrimpoluminescence is just a play on that. And yes, it is being underwater that allows sounds to be louder than that maximum listed. No matter how forcefully something is vibrating, there's only so much air to push around, but water is denser, so it can transmit more.
@fish_wizard618
Pistol shrimp also house one of my favorite species in the world, Synalpheus regalis. Synalpheus regalis is a species of pistol shrimp that live in a eusocial colony. They live almost their entire live in a host sponge that they never leave, live in a colony that can contain up to 300 individuals, have one breading female while the rest forage and protect the colony (like bees, ants, and naked mole rats), and their colony’s get so loud, that during wwII the US placed submarines near them to hide from sonar which helped win the war. There’s a love more interesting info on them just on wikipedia, so check it out if your interested.
@CallmeL0Lfy
aw the way the shrimp practically hold onto the goby is just adorable 😭
@ahppa
I'm so glad you brought up the mutualistic behavior of gobis and pistol shrimp! It's my favorite example by far. Since cavitation is an implosion, I'd like to vote for "Shrimplosion"
@bigmclargehuge8219
Unpopular opinion: Shrimpoluminescence is the best word mankind has EVER made.
@GhostOfSnuffles
I'm assuming the confusing thing about Mantis shrimp eyes tripping you up is the circular polarization? Since they're the only animal known that can see it there's no working surrogate to help explain it. As far as it can be understood/explained it's exclusive to the shrimp specifically because their front raptorial fins have cells that reflect circular polarized light. So more then likely it's used as a means to spot/communicate with others of their own kind. Considering they can kill each others with a single hit and are extremely aggressive it makes sense they need to be able to see and signal each other in such a way as to make sure there's as little confusion as possible. So if you're a Mantis shrimp that sees something reflecting that specific type of light it's certainly another Mantis shrimp.... Or a scientist messing with you. The only other notable features of their eyes is that their compound eyes are split into three horizontal rows with each row being dedicated to picking up light of different wavelengths. The topmost row of each eye is dedicated to 300-500-ish nanometer wavelengths commonly associated with UV and blue light and the bottom most rows dedicated mostly to >720+ nanometer wavelengths. Basically their eyes evolved to specialize in the types of light that were more then likely to shine from above or be reflected from below. The middle row has most of the specialized circular polarization detection cells which would make sense since they'd want to be looking directly at each other when signaling. They have the widest spectrum of vision of any known animal. They can also adjust their eye stalks side to side to give themselves 360 degrees of vision or facing forward to enhance their depth perception. I'm not a scientist but i had a GF that was obsessed with ocean critters and would tell me all about them. It's been like 20 years and for whatever reason i still remember a ton of ocean lore that i'll never use...... I don't even like the ocean.
@Peenyouwass
hey, i'm only a couple of minutes into this video, and i just wanted to say that i think your dedication to providing peer-reviewed info is amazing, also your editing is very entertaining, just the overall production value is really up there i feel, and i sincerely hope your channel sees some rapid growth soon. now onto the actual video i go
@ethanhess8230
8:15 yes, shotguns are generally louder than pistols. They usually use way more gunpowder. Also: decibels measure the intensity of pressure waves, so technically that 194 db limit in air is the most intense pressure wave that can be considered sound instead of an explosive blast wave, if you go higher than that the waveform actually creates vacuums as they travel which collapse as they go which is actually really similar to what the pistol shrimp is doing underwater.
@ch1pnd413
Yes, smaller guns are more quiet. Water causes sounds to be apparently louder because sounds travel further underwater due to decreased attenuation. Sounds in air and sounds in wanted are both measured in decibels but they aren’t really that comparable. It’s pretty complicated. 🤷🏼♀️
@pippinbloom
Babe, wake up!! The Octopus Lady just uploaded!!
@benmcreynolds8581
Mutualism in nature is the most amazing and adorably heartwarming thing that I have come across. It melts my heart and makes me unbelievably curious and full of wonder and hope. That amazing things do exist ☺️
@thekatt...
As an old lady I'm surprised at all I learn here. Your videos are so well done. Entertaining, super informative and fascinating. Your editing is impeccable. Well done Octopus lady ! 👋👋👋 😊💜🇨🇦
@Stufunabu
Hi! I know nothing about sea life, but I do know a lot about sounds! There might be a reason why the information you found about decibels was contradictory. Decibels are actually not a unit of measure by themselves, they need to be associated with a frame of reference, so there are many types of decibels. For example, dB SPLs have for reference sound pressure level. dB HLs will have for reference hearing levels, so basically they adjusted the scale to human hearing capabilities. Maybe your sources didn't distinguish these different scales :) dBSPLs will be higher that dBSLs. Also, some sources mix up the concepts of maximum pressure level with maximum capacity of human ear. Just because we stop being able to hear it doesn't mean more pressure wasn't produced! Sorry, this was long, and I might be wrong about some things. I'm just a very enthusiastic audiology student 😅😁
@angrypigs009
You should do a video on zombie worms (they aren’t talked about much and it would be quite interesting) because animals in the deep areas are normally quite unique compared to animals near the surface (and in my opinion cooler) :)
@kingcosworth2643
12:00 The shrimp is giving the Gobie a little tickle tickle.
@Rodiroess
I think the shrimp lets the goby watch out so the shrimp can totally focus on burrowing/shelter making. That way they both get shelter faster, while still being able to keep an eye out.
@quitethenon-binaryfuss8596
okay. it is official. the pistol shrimp is my favorite animal. if not for the adorable mutualistic relationships they can form with gobies (adorable name btw) then for the absolutely fascinating ways they use their "pistol"! like especially the communication part is just incredibly interesting and I cannot wait for us to understand and find out more about the how and why and aaaah I love them and thank you so much for introducing me to them!! needless to say: great video PS: I think will add this video to a playlist where I keep all my comfort content because I feel absolutely delighted right now^^
@aidanconnor2274
The "loudest sound possible" might be referring to the largely manmade barrier between what we call sound waves and what we call shock waves, as at a certain point, what once was sound just becomes a big, angry force
@alexcarter8807
Pistol shrimp are so cool! They're the source of all those popping sounds on the reef I used to love as a kid. I used to catch one and let it sit in my hand in a little water, and it was snap its claw and it would kind of sting.
@OctopusLady