In honor of Valentine's Day, that most cherished day of beauty and love, the Tangents crew gets real down and dirty by telling you more than you could ever want to know about sex harpoons, cannibalism, living sperm, and some other utterly un-romantic methods of copulation employed by the animal kingdom! SciShow Tangents is on YouTube! Go to www.youtube.com/scishowtangents to check out this episode with the added bonus of seeing our faces! Head to www.patreon.com/SciShowTangents to find out how you can help support SciShow Tangents, and see all the cool perks you’ll get in return, like bonus episodes and a monthly newsletter!And go to https://store.dftba.com/collections/scishow-tangents to buy your very own, genuine SciShow Tangents sticker!A big thank you to Patreon subscribers Garth Riley, Mike A, and Tom Mosner for helping to make the show possible!Follow us on Twitter @SciShowTangents, where we’ll tweet out topics for upcoming episodes and you can ask the science couch questions! While you're at it, check out the Tangents crew on Twitter: Ceri: @ceriley Sam: @im_sam_schultz Hank: @hankgreen

You need to clean a smudge of your glasses? Use some spit! Gotta make some food moist so you can swallow it? Why not try spit?  Lips too dry to whistle a tune? My friend, spit is the bodily excretion for you! Spit: don't leave home without it!SciShow Tangents is on YouTube! Go to www.youtube.com/scishowtangents to check out this episode with the added bonus of seeing our faces! Head to www.patreon.com/SciShowTangents to find out how you can help support SciShow Tangents, and see all the cool perks you’ll get in return, like bonus episodes and a monthly newsletter!And go to https://store.dftba.com/collections/scishow-tangents to buy your very own, genuine SciShow Tangents sticker!A big thank you to Patreon subscribers Garth Riley and Tom Mosner for helping to make the show possible!Follow us on Twitter @SciShowTangents, where we’ll tweet out topics for upcoming episodes and you can ask the science couch questions! While you're at it, check out the Tangents crew on Twitter: Ceri: @ceriley Sam: @im_sam_schultz Hank: @hankgreen[Trivia Question]Minor salivary glandshttps://www.smithsonianmag.com/smart-news/researchers-may-have-discovered-new-organ-set-salivary-glands-hidden-your-head-180976104/[Fact Off]Bowerbird making “paint” out of salivahttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3996615/https://onlinelibrary.wiley.com/doi/abs/10.1111/j.2005.0908-8857.03549.xhttps://www.sciencedirect.com/science/article/abs/pii/S0003347213001097?via%3Dihubhttps://royalsocietypublishing.org/doi/10.1098/rsbl.2005.0325https://australian.museum/learn/animals/birds/satin-bowerbird/https://australian.museum/learn/animals/birds/satin-bowerbird/Spitting cobras evolved to defend against hominids throwing rockshttps://www.newsweek.com/how-it-feels-acobra-spits-face-revealed-excruciating-detail-1749490https://www.earthtouchnews.com/discoveries/discoveries/spitting-cobras-may-have-evolved-unique-venom-to-defend-from-ancient-humans/https://news.cornell.edu/stories/2021/01/study-did-cobras-first-spit-venom-scare-pre-humans[Ask the Science Couch]Compressing salivary glands aka “gleeking”https://www.ncbi.nlm.nih.gov/books/NBK542272/https://www.health.com/mind-body/what-is-gleekinghttp://www.vivo.colostate.edu/hbooks/pathphys/digestion/pregastric/salivary.html [Butt One More Thing]Dung-spitting competitionshttps://www.huffpost.com/entry/dung-spitting-contest-northern-ireland_n_55ae6aebe4b0a9b9485290c1https://www.ripleys.com/weird-news/bokdrol-spoeg/https://www.sbnation.com/lookit/2014/8/1/5960987/spitting-antelope-poop-is-a-sport-kudu-bokdrol-spoeg

Original Airdate: February 19, 2019It seems like everyone's using Artificial Intelligence these days, so we thought we'd dip back into our archives for a little refresher on just what the heck AI even is. Plus, meet the character find of 2023: President Smartest Dog in the World! 

You can bounce it, you can stretch it, heck... some people even chew it! That's right, it's rubber! And at long last, the Tangents team is finally talking about it! You all really wanted an episode about rubber, right? Well, we made it anyway, so you have to listen. SciShow Tangents is on YouTube! Go to www.youtube.com/scishowtangents to check out this episode with the added bonus of seeing our faces! Head to www.patreon.com/SciShowTangents to find out how you can help support SciShow Tangents, and see all the cool perks you’ll get in return, like bonus episodes and a monthly newsletter!And go to https://store.dftba.com/collections/scishow-tangents to buy your very own, genuine SciShow Tangents sticker!A big thank you to Patreon subscribers Garth Riley and Tom Mosner for helping to make the show possible!Follow us on Twitter @SciShowTangents, where we’ll tweet out topics for upcoming episodes and you can ask the science couch questions! While you're at it, check out the Tangents crew on Twitter: Ceri: @ceriley Sam: @im_sam_schultz Hank: @hankgreen[Definition]Mesoamerican rubber recipehttps://news.mit.edu/2010/mayaball-0524[Trivia Question]Koosh ball filamentshttps://www.mentalfloss.com/article/73583/12-kooky-facts-about-koosh-balls[Fact Off]Mimicking birdsong with a rubber tubehttps://softmath.seas.harvard.edu/publication/controllable-biomimetic-birdsong/https://seas.harvard.edu/news/2011/01/simple-rubber-devices-mimic-complex-bird-songshttps://www.bbc.com/news/science-environment-12093906Mayan dental care & harvesting chicle as gumhttps://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1870-249X2018000100007https://scholar.smu.edu/cgi/viewcontent.cgi?article=1020&context=fieldandlabhttps://www.sciencedirect.com/science/article/abs/pii/S0008621500827755https://bda.org/museum/collections/teeth-and-dentures/mayan-toothhttps://www.sciencedirect.com/science/article/abs/pii/S2352409X22000980#b0200

From a bunny’s seemingly-useless fluffy li’l puffball to a scorpion’s practical and deadly venom-filled stinger, the world is filled with all sorts of wonderful tails! And heck, some of them aren’t even tails at all, but that’s ok!SciShow Tangents is on YouTube! Go to www.youtube.com/scishowtangents to check out this episode with the added bonus of seeing our faces! Head to www.patreon.com/SciShowTangents to find out how you can help support SciShow Tangents, and see all the cool perks you’ll get in return, like bonus episodes and a monthly newsletter!And go to https://store.dftba.com/collections/scishow-tangents to buy your very own, genuine SciShow Tangents sticker!A big thank you to Patreon subscribers Garth Riley and Tom Mosner for helping to make the show possible!Follow us on Twitter @SciShowTangents, where we’ll tweet out topics for upcoming episodes and you can ask the science couch questions! While you're at it, check out the Tangents crew on Twitter: Ceri: @ceriley Sam: @im_sam_schultz Hank: @hankgreen[Trivia Question]Seahorse square tail segments https://today.ucsd.edu/story/why_the_seahorses_tail_is_square_and_how_it_could_be_an_inspiration[Fact Off]Swallowtail butterfly tails protect from attacking damagehttps://www.sciencenews.org/article/butterfly-wing-tail-loss-break-birds-escapehttps://phys.org/news/2022-06-evidence-butterflies-tails-distract-predators.htmlhttps://royalsocietypublishing.org/doi/10.1098/rspb.2022.0562Bird-of-paradise light-absorbing tail feathershttps://www.nature.com/articles/s41467-017-02088-whttps://www.allaboutbirds.org/news/new-vogelkop-superb-bird-of-paradise-changes-up-the-old-song-and-dance/https://www.theverge.com/2019/8/20/20813054/vantablack-ultrablack-black-material-surrey-nanosystems-carbon-nanotubes-science-materials[Ask the Science Couch]Evolutionary tail loss in some primates (apes)https://www.science.org/content/article/jumping-gene-may-have-erased-tails-humans-and-other-apes-and-boosted-our-risk-birth-defectshttps://www.biorxiv.org/content/10.1101/2021.09.14.460388v1https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3263034/https://pursuit.unimelb.edu.au/articles/why-don-t-humans-have-tails[Butt One More Thing]Ant head mimicry on wasp tail/metasomaImage: https://www.researchgate.net/figure/Posterior-metasomal-tergites-and-ovipositor-of-Clistopyga-caramba-sp-nov-holotype_fig2_281632324https://www.biotaxa.org/Zootaxa/article/view/zootaxa.4013.2.9https://phys.org/news/2021-09-segments-scorpion-metasoma.html

From precious oxygen to the lowly fart, every day we’re all wallowing around in an invisible soup of gas! Exciting, isn’t it? Tune in to go into an exciting adventure into the world of gas with Sam, Ceri, and Dr. Tubeboy!SciShow Tangents is on YouTube! Go to www.youtube.com/scishowtangents to check out this episode with the added bonus of seeing our faces! Head to www.patreon.com/SciShowTangents to find out how you can help support SciShow Tangents, and see all the cool perks you’ll get in return, like bonus episodes and a monthly newsletter!And go to https://store.dftba.com/collections/scishow-tangents to buy your very own, genuine SciShow Tangents sticker!A big thank you to Patreon subscribers Garth Riley and Tom Mosner for helping to make the show possible!Follow us on Twitter @SciShowTangents, where we’ll tweet out topics for upcoming episodes and you can ask the science couch questions! While you're at it, check out the Tangents crew on Twitter: Ceri: @ceriley Sam: @im_sam_schultz Hank: @hankgreen[Trivia Question]Horace Wells and Nitrous Oxide/Laughing Gashttps://pubs.asahq.org/anesthesiology/article/119/5/1014/13670/Horace-Wells-Demonstration-of-Nitrous-Oxide-in[Fact Off]History of the storage/transportation of gas (cylinders, gas holders, bamboo)https://afdc.energy.gov/fuels/natural_gas_basics.htmlhttps://onlinelibrary.wiley.com/doi/10.1002/0471238961.0701190519160509.a01https://www.apga.org/apgamainsite/aboutus/facts/history-of-natural-gashttps://www.jstor.org/stable/24969284https://americanhistory.si.edu/collections/search/object/nmah_2603https://www.journals.uchicago.edu/doi/pdfplus/10.1086/349362https://scholarsmine.mst.edu/professional_theses/147/https://www.nortegas.es/en/our-business/distribution-of-natural-gas/history-of-natural-gas/Canaries to detect carbon monoxide in mines & resuscitating them with oxygenhttps://www.smithsonianmag.com/smart-news/story-real-canary-coal-mine-180961570/[Ask the Science Couch]Fart/flatus noises from anal sphincterhttps://pubmed.ncbi.nlm.nih.gov/8601379/https://www.menshealth.com/health/a19545944/fart-noises/https://flatology.com/consider-the-sphincter/https://urogynecology.nm.org/anal-incontinence.html[Butt One More Thing]Snake cloacal popping https://www.journals.uchicago.edu/doi/full/10.1086/377052

It's the time of year for old acquaintances to be forgot, but SciShow Tangents has never been one to bow to convention! So this week, we're remembering all our dang acquaintances and way more as we dive deep on the concept of Memory! Want more Deboki? Check her out at https://twitter.com/okidoki_boki to find info on all of the many projects she works on!SciShow Tangents is on YouTube! Go to www.youtube.com/scishowtangents to check out this episode with the added bonus of seeing our faces! Head to www.patreon.com/SciShowTangents to find out how you can help support SciShow Tangents, and see all the cool perks you’ll get in return, like bonus episodes and a monthly newsletter!And go to https://store.dftba.com/collections/scishow-tangents to buy your very own, genuine SciShow Tangents sticker!A big thank you to Patreon subscribers Garth Riley and Tom Mosner for helping to make the show possible!Follow us on Twitter @SciShowTangents, where we’ll tweet out topics for upcoming episodes and you can ask the science couch questions! While you're at it, check out the Tangents crew on Twitter: Ceri: @ceriley Sam: @im_sam_schultz Hank: @hankgreen[Truth or Fail]Imprinting in generalhttps://www.frontiersin.org/articles/10.3389/fphys.2021.736999/fullhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4726915/Pekin duckling different eye, different memorieshttps://www.sciencedirect.com/science/article/abs/pii/S0003347216302597?via%3Dihubhttps://phys.org/news/2016-11-ducklings-memory-banks-visual.htmlCalifornia condor puppet funeralshttps://www.nature.com/news/2007/070806/full/news070806-3.html#B1https://onlinelibrary.wiley.com/doi/abs/10.1002/zoo.20151Siberian cranes imprint for migrationhttps://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1377&context=nacwgprochttps://savingcranes.org/learn/species-field-guide/siberian-crane/https://amp.theguardian.com/news/2006/apr/01/guardianobituaries.mainsection[Trivia Question]Chaser (Border Collie) remembering unique object nameshttps://webs.wofford.edu/reidak/Pubs/Pilley%20and%20Reid%202011.pdfhttps://www.goupstate.com/story/news/2019/07/26/world-famous-dog-chaser-dies-at-15/4597342007/https://www.goupstate.com/story/news/2021/11/02/spartanburg-community-college-new-mascot-scc-chasers-chaser-the-border-collie-south-carolina/6199107001/[Fact Off]Taking Photos Makes Memory Worse https://www.binghamton.edu/news/story/3079/taking-photos-can-impair-your-memory-of-eventshttps://www.npr.org/sections/health-shots/2021/08/05/1022041431/to-remember-the-moment-try-taking-fewer-photos[Ask the Science Couch]Remembering commercial jingles rather than “important” names and dates https://psycnet.apa.org/doiLanding?doi=10.1037%2Fxge0001050https://muse.jhu.edu/article/269004https://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0086170https://journals.sagepub.com/doi/abs/10.1177/0305735611406578https://journals.sagepub.com/doi/10.1177/0305735611418553https://psycnet.apa.org/record/2018-35459-001https://www.frontiersin.org/articles/10.3389/fnbeh.2022.896285/full[Butt One More Thing]Poop amnesia or vasovagal syncopehttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC6067056/https://www.iflscience.com/woman-loses-10-years-of-memories-due-to-bad-case-of-constipation-52589https://www.nzherald.co.nz/lifestyle/constipated-woman-lost-10-years-of-memories-after-straining-too-hard/F5X2BVV6FWFXH7NNZZFG2IGEYA/ 

There are no two ways about it: winter is a great time to sleep. In fact, the Tangents crew all decided to sleep this entire week, which is what this episode is a rerun! See you next week/year!SciShow Tangents is on YouTube! Go to www.youtube.com/scishowtangents to check out this episode with the added bonus of seeing our faces! Head to www.patreon.com/SciShowTangents to find out how you can help support SciShow Tangents, and see all the cool perks you’ll get in return, like bonus episodes and a monthly newsletter!And go to https://store.dftba.com/collections/scishow-tangents to buy your very own, genuine SciShow Tangents sticker!A big thank you to Patreon subscribers Garth Riley and Tom Mosner for helping to make the show possible!Follow us on Twitter @SciShowTangents, where we’ll tweet out topics for upcoming episodes and you can ask the science couch questions! While you're at it, check out the Tangents crew on Twitter: Ceri: @ceriley Sam: @im_sam_schultz Hank: @hankgreen

Jack frost ain't just nipping at our noses where we live, he's basically biting them off! Ouch! So we thought we'd learn a little about what "cold" even is, and you may not be too surprised to hear that the answer is way, way more complicated than you'd think. Bundle up and take a listen!SciShow Tangents is on YouTube! Go to www.youtube.com/scishowtangents to check out this episode with the added bonus of seeing our faces! Head to www.patreon.com/SciShowTangents to find out how you can help support SciShow Tangents, and see all the cool perks you’ll get in return, like bonus episodes and a monthly newsletter!And go to https://store.dftba.com/collections/scishow-tangents to buy your very own, genuine SciShow Tangents sticker!A big thank you to Patreon subscribers Garth Riley and Tom Mosner for helping to make the show possible!Follow us on Twitter @SciShowTangents, where we’ll tweet out topics for upcoming episodes and you can ask the science couch questions! While you're at it, check out the Tangents crew on Twitter: Ceri: @ceriley Sam: @im_sam_schultz Hank: @hankgreen[Trivia Question]Coldest temperature - Bremen drop tower heighthttps://www.livescience.com/coldest-temperature-ever[Fact Off]Freeze dried potato made by the Altiplanohttps://www.youtube.com/watch?v=tJrOJg2a-_Yhttps://www.france24.com/en/live-news/20210715-chuno-the-andean-secret-to-making-potatoes-last-decadeshttps://www.atlasobscura.com/foods/chunos-potatoes-feetCaloric reflex/vestibular testhttps://medlineplus.gov/ency/article/003429.htmhttps://www.sciencedirect.com/topics/medicine-and-dentistry/caloric-vestibular-testhttps://www.ncbi.nlm.nih.gov/books/NBK10863/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4325576/

sniff sniff... What is that awful smell? Ah, it's our stinky, old games! I mean, just look at Truth or Fail! It's all covered in mold! Good thing Deboki's here this week to try out some fresh, exciting new games with us!scWant more Deboki? Check her out at https://twitter.com/okidoki_boki to find info on all of the many projects she works on!SciShow Tangents is on YouTube! Go to www.youtube.com/scishowtangents to check out this episode with the added bonus of seeing our faces! Head to www.patreon.com/SciShowTangents to find out how you can help support SciShow Tangents, and see all the cool perks you’ll get in return, like bonus episodes and a monthly newsletter!And go to https://store.dftba.com/collections/scishow-tangents to buy your very own, genuine SciShow Tangents sticker!A big thank you to Patreon subscribers Garth Riley and Tom Mosner for helping to make the show possible!Follow us on Twitter @SciShowTangents, where we’ll tweet out topics for upcoming episodes and you can ask the science couch questions! While you're at it, check out the Tangents crew on Twitter: Ceri: @ceriley Sam: @im_sam_schultz Hank: @hankgreen