1 00:00:03,320 --> 00:00:08,080 Speaker 1: Welcome to Stuff to blow your mind, a production of iHeartRadio. 2 00:00:10,400 --> 00:00:16,960 Speaker 2: Welcome to Animalius Stupendium. My name is Agromandanes, wizard to 3 00:00:17,120 --> 00:00:21,079 Speaker 2: the Five Crowns? Who is it for now? Inventor of 4 00:00:21,120 --> 00:00:27,640 Speaker 2: the magic missile, entireless creature chronicler. However, mere monsters hold 5 00:00:27,720 --> 00:00:32,520 Speaker 2: no mystery for me these days. Dragons are drab, manticors 6 00:00:32,600 --> 00:00:36,839 Speaker 2: are ne. Instead, I turn my attention once more to 7 00:00:36,960 --> 00:00:42,360 Speaker 2: the strange fauna of a land called Earth. Travel with me, 8 00:00:42,520 --> 00:00:50,080 Speaker 2: gentle reader, as we consider the mighty mantis shrimp. 9 00:00:48,840 --> 00:00:54,280 Speaker 3: Common name mantis shrimp. Scientific classification, various species of the 10 00:00:54,400 --> 00:01:00,720 Speaker 3: order Stomatopod, frequency and range, Indian and Pacific Ocean. Size, 11 00:01:01,000 --> 00:01:08,040 Speaker 3: small diet, various gastroparts, crabs and mosques, treasure work eggs. 12 00:01:08,880 --> 00:01:10,640 Speaker 3: Challenge rating eleven. 13 00:01:11,959 --> 00:01:16,760 Speaker 2: How might I describe these tiny aquatic wonders so unlike 14 00:01:16,800 --> 00:01:22,200 Speaker 2: the boring merfork and hippocampi i'd study previously. Most specimens 15 00:01:22,200 --> 00:01:25,720 Speaker 2: are no longer than ten centimeters three point nine inches, 16 00:01:26,040 --> 00:01:29,520 Speaker 2: or roughly two lengths of a wizard's finger. It is, 17 00:01:29,560 --> 00:01:33,280 Speaker 2: of course, a burrow dwelling crustation with an elongated body, 18 00:01:33,600 --> 00:01:38,760 Speaker 2: stoved eyes, slender legs, and long antennae. Its appearance compares 19 00:01:38,800 --> 00:01:42,640 Speaker 2: favorably to other shrimp, though their front appendages resemble the 20 00:01:42,720 --> 00:01:47,760 Speaker 2: raptorial legs of the also excellent terrestrial insect predator, the 21 00:01:47,760 --> 00:01:53,440 Speaker 2: preying mantis its namesake ah. But the colors. The so 22 00:01:53,600 --> 00:01:57,120 Speaker 2: called peacock mantistrimp, for example, is so named because it 23 00:01:57,200 --> 00:02:02,080 Speaker 2: features bright shades of red, green, orange, and blue. Such 24 00:02:02,120 --> 00:02:04,320 Speaker 2: a creature would not seem out of place in the 25 00:02:04,400 --> 00:02:08,720 Speaker 2: chromatic realm, but its eyes are even more curious. What 26 00:02:08,840 --> 00:02:13,720 Speaker 2: colors do they see? While human eyes have only three 27 00:02:13,800 --> 00:02:18,840 Speaker 2: types of photoreceptor cells to process colors, mantishrimp boast between 28 00:02:18,840 --> 00:02:23,280 Speaker 2: twelve and sixteen. This has led to much speculation on 29 00:02:23,360 --> 00:02:28,120 Speaker 2: exactly what a mantishrimp sees when it beholds its aquatic world. 30 00:02:28,720 --> 00:02:31,960 Speaker 2: Might it in fact glimpse colors beyond the realm of 31 00:02:32,080 --> 00:02:37,919 Speaker 2: human senses. It's entirely possible, but researchers increasingly urge caution 32 00:02:38,320 --> 00:02:43,679 Speaker 2: on grand generalizations about how and what these curious creatures see. 33 00:02:44,160 --> 00:02:48,200 Speaker 2: Without access to a good polymorphs spell, human scientists are 34 00:02:48,320 --> 00:02:54,520 Speaker 2: largely in the dark. Many mysteries remain. Certainly, mantishrimp may 35 00:02:54,680 --> 00:02:59,840 Speaker 2: very well recognize subtle coloration differences in other mantishrimp predators 36 00:03:00,200 --> 00:03:04,480 Speaker 2: or choral environments. It's also possible that color perception is 37 00:03:04,560 --> 00:03:08,120 Speaker 2: just one part of an elaborate sensory network, and we 38 00:03:08,200 --> 00:03:11,560 Speaker 2: do it a vast disservice to put too much emphasis 39 00:03:11,600 --> 00:03:15,600 Speaker 2: on vision. Though this, of course is an understandable mistake 40 00:03:15,919 --> 00:03:20,919 Speaker 2: given that we are such sight dependent creatures. Researchers point 41 00:03:20,919 --> 00:03:24,799 Speaker 2: out that in experiments, some manti shrimps seem to depend 42 00:03:24,919 --> 00:03:29,760 Speaker 2: more on shape than colorization in judging various targets in 43 00:03:29,840 --> 00:03:34,720 Speaker 2: their environment. Still, what are those eyes capable of seeing? 44 00:03:35,160 --> 00:03:38,560 Speaker 2: And how might we claim these powers for our own 45 00:03:39,320 --> 00:03:41,880 Speaker 2: I have a notion in mind for a pair of 46 00:03:42,000 --> 00:03:47,680 Speaker 2: magical goggles. But scientists have explored ways they might technologically 47 00:03:47,800 --> 00:03:52,400 Speaker 2: mimic manta shrimp eyes to create improved optical sensors to 48 00:03:52,480 --> 00:03:57,040 Speaker 2: do everything from improved cell phone cameras to aid doctors 49 00:03:57,040 --> 00:04:01,440 Speaker 2: in the detection and removal of tumors. But let us 50 00:04:01,520 --> 00:04:08,640 Speaker 2: consider the weaponry of the mantis shrimp. The mantis shrimp 51 00:04:08,760 --> 00:04:13,240 Speaker 2: makes use of two attacks via its raptorial front appendages, 52 00:04:13,720 --> 00:04:18,000 Speaker 2: but the type of damage depends on the species. Some 53 00:04:18,200 --> 00:04:22,040 Speaker 2: mantis shrimp, including the peacock mantis shrimp pack a pair 54 00:04:22,120 --> 00:04:26,080 Speaker 2: of dactile clubs which strike with bullet like speeds to 55 00:04:26,240 --> 00:04:29,960 Speaker 2: kill or stung enemies by impact and or shock wave 56 00:04:30,560 --> 00:04:36,120 Speaker 2: bludgeoning damage. This paunch is actually fast enough to produce 57 00:04:36,160 --> 00:04:40,800 Speaker 2: superheated vapor bubbles in the surrounding waters, and these cavitation 58 00:04:41,080 --> 00:04:47,120 Speaker 2: forces may apply additional damage. The majority of mantis shrimp, however, 59 00:04:47,480 --> 00:04:52,400 Speaker 2: have barred frontal appendages to pierce their prey at lower 60 00:04:52,440 --> 00:04:56,680 Speaker 2: attack speeds, while the clubbing mantis shrimp depend on a 61 00:04:56,720 --> 00:05:00,320 Speaker 2: spring loaded mechanism. Spearing mantis shrimp are di I did 62 00:05:00,360 --> 00:05:05,440 Speaker 2: between spring loaded stabbers and active muscle movement stabbers. In 63 00:05:05,520 --> 00:05:10,520 Speaker 2: either case, the stab happy mantis shrimp varieties ambush their 64 00:05:10,560 --> 00:05:15,279 Speaker 2: prey from cover, while clubbers launch more of a full 65 00:05:15,520 --> 00:05:21,680 Speaker 2: frontal assault. There are more mysteries concerning the mantis shrimp 66 00:05:21,720 --> 00:05:25,680 Speaker 2: to consider, but for now I must retire my wizard's 67 00:05:25,760 --> 00:05:31,360 Speaker 2: quill and allow my familiars some respite. But I shall 68 00:05:31,440 --> 00:05:35,880 Speaker 2: return with even more wonders of the natural world. 69 00:05:38,800 --> 00:05:39,000 Speaker 3: Hi. 70 00:05:39,120 --> 00:05:42,680 Speaker 4: This is Robert Lamb. Thanks to the Wizard Acromandanese for 71 00:05:42,760 --> 00:05:46,520 Speaker 4: joining us in this episode. Sources for this episode included 72 00:05:46,720 --> 00:05:51,560 Speaker 4: the National Aquarium, the Great barrier refoundation. Michael Irvings How 73 00:05:51,600 --> 00:05:54,800 Speaker 4: the Deadly mantis shrimp keeps cracks in its club in 74 00:05:54,880 --> 00:05:59,120 Speaker 4: Czech published on New Atlas in twenty eighteen. Jessica Morrison's 75 00:05:59,160 --> 00:06:03,280 Speaker 4: Mantis shrimps supercolor vision debunked, published in Nature twenty fourteen, 76 00:06:03,920 --> 00:06:09,360 Speaker 4: Chroninetol's color vision in stomatopodcrustaceans published in Philosophical Transactions of 77 00:06:09,360 --> 00:06:13,520 Speaker 4: the Royal Society b twenty twenty two. And patel at 78 00:06:13,520 --> 00:06:16,440 Speaker 4: All's Mantis shrimp identify an object by its shape rather 79 00:06:16,480 --> 00:06:19,599 Speaker 4: than its color during visual recognition, published in the Journal 80 00:06:19,600 --> 00:06:23,719 Speaker 4: of Experimental Biology twenty twenty one. Thanks as always to 81 00:06:23,760 --> 00:06:26,720 Speaker 4: the excellent JJ Possway for producing this episode. If you 82 00:06:26,760 --> 00:06:30,760 Speaker 4: wish to contact Agromandanes with recommendations for future episodes, you 83 00:06:30,800 --> 00:06:33,600 Speaker 4: can send an email to contact at stuff Blow your 84 00:06:33,600 --> 00:06:38,000 Speaker 4: Mind dot com. 85 00:06:38,120 --> 00:06:41,080 Speaker 1: Stuff to Blow Your Mind is production of iHeartRadio. For 86 00:06:41,160 --> 00:06:43,960 Speaker 1: more podcasts from My Heart Radio, visit the iHeartRadio app, 87 00:06:44,120 --> 00:06:46,880 Speaker 1: Apple Podcasts, or wherever you listen to your favorite shows.