SciShow Tangents is the lightly competitive knowledge showcase from the geniuses behind the YouTube series SciShow. Every other Tuesday, join Hank Green, Ceri Riley, and Sam Schultz as they try to one-up and amaze each other with weird and funny scientific research... while not getting distracted. There will be tangents about video games, music, weird smells, surprisingly deep insights about life, and of course, poop, but it always comes back to the science.
Devotees of the testudines rejoice! Whether you have one as a pet, admire them at the zoo, or giggle with the rest of the internet when they rock each other off logs, chances are high, we think, that you like turtles. We like turtles! And conveniently for us, turtle science is also extremely cool, so this was basically an ideal episode to make. Enjoy!
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! A big thank you to Patreon subscribers Garth Riley and Glenn Trewitt for helping to make the show possible!
And go to https://store.dftba.com/collections/scishow-tangents to buy some great Tangents merch!
Follow us on Twitter @SciShowTangents, where we’ll tweet out topics for upcoming episodes and you can ask the science couch questions!
[Truth or Fail]
Fossilized turtle poop showing green algae feast site
https://www.eurekalert.org/news-releases/995472
https://www.science.org/content/article/sea-turtles-have-3000-year-old-routines
Crushing of fossilized turtle shells shows burial site age
https://www.nytimes.com/2022/12/26/science/turtle-shells-fossils-paleontology.html
Turtle fossil was actually a plant fossil
[Trivia Question]
Speed of a sand-digging robot modeled after a turtle hatchling
https://today.ucsd.edu/story/bot-inspired-by-baby-turtles-can-swim-under-the-sand-1
https://onlinelibrary.wiley.com/doi/full/10.1002/aisy.202200404
[Fact Off]
Chinese soft-shelled turtles (basically) pee out their mouths
https://www.sciencedaily.com/releases/2012/10/121011090643.htm
https://www.jstage.jst.go.jp/article/aohc/63/2/63_2_181/_article
Microplastics in sand mess with sea turtle sex ratios
[Ask the Science Couch]
Turtle communication and vocalization
https://anatomypubs.onlinelibrary.wiley.com/doi/10.1002/ar.24553
https://www.nature.com/articles/s41467-020-14356-3
https://www.nature.com/articles/s41467-022-33741-8 https://gizmodo.com/jurassic-parks-dinosaur-sound-effects-were-actually-ani-5994278
https://www.washingtonpost.com/climate-environment/2023/01/06/turtles-eat-south-america/
[Butt One More Thing]
Collecting loggerhead sea turtle fecal samples by making them custom swimsuits
https://www.uq.edu.au/news/article/2015/10/sea-turtles-don-swimsuits-science
Pictures:
https://www.flickr.com/photos/37175871@N06/albums/72157659326105212/
From expressing ourselves through fashion to protecting ourselves from the elements, textiles seem to be self-evidently significant to the human experience. But it's our goal on Tangents to always poke holes in the obvious, tear through distraction, and weave humor with knowledge - and the facts this episode will blow your cotton-poly blend socks off.
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! A big thank you to Patreon subscribers Garth Riley and Glenn Trewitt for helping to make the show possible!
And go to https://store.dftba.com/collections/scishow-tangents to buy some great Tangents merch!
Follow us on Twitter @SciShowTangents, where we’ll tweet out topics for upcoming episodes and you can ask the science couch questions!
[Truth or Fail Express]
Fabric shoe sole tariff
https://www.nytimes.com/2018/11/23/business/economy/columbia-sportswear-trump-trade-war.html
https://www.bbc.com/news/business-45875405
https://www.smithsonianmag.com/smart-news/this-is-why-your-converse-sneakers-have-felt-on-the-bottom-6016648/
Water-soluble fiber to prove original Finnish textile
https://www.perniaspopupshop.com/encyclopedia/karnataka/mysore-silk
https://www.ksicsilk.com/Home/About
https://news.mit.edu/2023/fiber-barcodes-can-make-clothing-labels-that-last-0321
Wool Acts: burial shroud requirements
https://www.atlasobscura.com/articles/england-wool-burial-shrouds
https://nursingclio.org/2020/05/21/weaving-wool-into-death-burial-in-17th-century-england/
https://www.hungerfordvirtualmuseum.co.uk/?view=article&id=961&catid=10
[Trivia Question]
“Cappers Act” of 1571 in England required males to wear woolen caps
https://www.metmuseum.org/art/collection/search/81552
https://collections.vam.ac.uk/item/O124661/cap/cap-unknown/?print=1
[Fact Off]
Indigenous Aymara weavers and pediatric cardiologists co-created a medical textile for congenital heart defects
https://jamanetwork.com/journals/jama/article-abstract/2674640
https://edhub.ama-assn.org/jn-learning/video-player/16238899
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10329454/
https://pubmed.ncbi.nlm.nih.gov/3379209/
https://www.ncbi.nlm.nih.gov/books/NBK470160/
https://www.hopkinsmedicine.org/health/treatment-tests-and-therapies/cardiac-catheterization
https://www.ted.com/talks/franz_freudenthal_a_new_way_to_heal_hearts_without_surgery/transcript
Creating experimental antimicrobial underwear for astronauts or space laundry machines
https://www.livescience.com/astronauts-shared-underwear-upgrade.html
https://phys.org/news/2021-05-spacesuit-underwear.html
https://www.npr.org/sections/thetwo-way/2009/07/space_age_underwear_that_can_b.html
https://www.smithsonianmag.com/smart-news/nasa-teams-tide-do-laundry-space-180978067/
https://apnews.com/article/laundry-wash-clothes-space-station-nasa-5a7f2795150f7dce81581cfb82cdd1f7
[Ask the Science Couch]
History of knitting machines
https://invention.si.edu/knitting-stockings-machine
http://www.nottsheritagegateway.org.uk/people/frameworkknitters.htm
Crochet vs. knit stitches
https://www.youtube.com/watch?v=jecATRwHQP8
https://akaspar.pages.cba.mit.edu/textiles-recitation/background.html
Crocheting hyperbolic space models
https://www.ams.org/publicoutreach/math-imagery/taimina
https://www.cabinetmagazine.org/issues/16/wertheim_henderson_taimina.php
https://www.theiff.org/oexhibits/oe1e.html
[Butt One More Thing]
Art project that extracted cellulose from cow manure to make a semi-synthetic fabric
https://www.sciencedirect.com/science/article/pii/S014181302300404X
https://www.huffpost.com/entry/poop-clothing_n_58e7d6f0e4b058f0a02efa77
https://jalilaessaidi.com/cowmanure/
While you're at it, check out the Tangents crew on Twitter: Ceri: @ceriley Sam: @im_sam_schultz Hank: @hankgreen
It may be well-known that hope is the thing with feathers, but how much is known about feathers themselves? Turns out, plenty! From shrub grouses to shuttlecocks and all the pea-babies (diminutive for peacocks, definitely for sure) in between, come soar on the delightfully complex wings of knowledge with us!
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! A big thank you to Patreon subscribers Garth Riley and Glenn Trewitt for helping to make the show possible!
And go to https://store.dftba.com/collections/scishow-tangents to buy some great Tangents merch!
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]
Dermestid beetles on dino feather in amber
https://www.science.org/content/article/feathered-dinosaurs-discovered
https://www.eurekalert.org/news-releases/986124
https://www.discovermagazine.com/the-sciences/dermestid-beetles-feasted-on-dinosaur-feathers
Badminton shuttlecock dino-birdie
https://www.amnh.org/exhibitions/dinosaurs-ancient-fossils/liaoning-diorama/a-feathered-tyrant
https://australian.museum/learn/dinosaurs/fact-sheets/dilong-paradoxus/
https://www.eurekalert.org/news-releases/1030468
Roboduck with dino feathers
https://www.audubon.org/news/new-aquatic-dinosaur-find-strange-and-startling-avian-hodgepodge
[Trivia Question]
Speed of peacock tail feather shaking to signal interest to mates
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0152759
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0207247
https://www.theatlantic.com/science/archive/2018/12/peacock-crests-are-vibration-sensors/578656/
https://gizmodo.com/the-physics-of-peacock-tail-feathers-is-even-more-dazzl-1772653586
[Fact Off]
Turning waste chicken feathers into a flavorless, edible meat paste
https://ourworldindata.org/grapher/animals-slaughtered-for-meat?time=latest
https://phys.org/news/2017-09-bird-feathers-food.html
https://lup.lub.lu.se/luur/download?func=downloadFile&recordOId=9055668&fileOId=9055675
https://www.thechemicalengineer.com/news/lund-team-turns-chicken-feathers-into-food/
Male sandgrouse belly feathers soak up water to carry back to their babies
https://royalsocietypublishing.org/doi/10.1098/rsif.2022.0878
https://academic.oup.com/condor/article/69/4/323/5229138
https://ebird.org/species/namsan1
[Ask the Science Couch]
Feather growth and development (and altricial vs. precocial baby birds)
https://academy.allaboutbirds.org/feathers-article/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4380223/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6917565/
[Butt One More Thing]
Fright molt: losing tail feathers as an antipredator adaptation
Trash, rubbish, waste, refuse...we have a lot of words for the gunk that goes on the truck, because whether we like it or not, humans make a lot of garbage. Get comfy with some grossness as we root around in garbage's past, present, and future. We're all on a path, you guys!
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! A big thank you to Patreon subscribers Garth Riley and Glenn Trewitt for helping to make the show possible!
And go to https://store.dftba.com/collections/scishow-tangents to buy some great Tangents merch!
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
Garbage
[The Scientific Definition]
Neptune balls
Laser broom
Wishcycling
[Trivia Question]
Eugene Poubelle garbage can ordinance in France
https://en.wiktionary.org/wiki/poubelle
https://doodles.google/doodle/eugene-poubelles-190th-birthday/
[Fact Off]
Sulfur-crested cockatoos opening garbage cans because of social learning
https://www.science.org/doi/10.1126/science.abe7808
https://www.eurekalert.org/news-releases/963482
https://www.cell.com/current-biology/fulltext/S0960-9822(22)01285-4
Hermit crabs are using plastic trash as shells
https://www.sciencedirect.com/science/article/pii/S0048969723075885
[Ask the Science Couch]
Waste-to-energy methods: power plants/incineration, gasification, landfill gas, anaerobic digestion
https://www.sciencedirect.com/science/article/pii/S0959652617317316?via%3Dihub
https://www.eia.gov/energyexplained/biomass/waste-to-energy-in-depth.php
https://www.sciencedirect.com/science/article/pii/B9780857090119500090
https://ieeexplore.ieee.org/document/5530419
https://www.epa.gov/lmop/basic-information-about-landfill-gas
https://www.nature.com/articles/nclimate2804
https://www.epa.gov/agstar/how-does-anaerobic-digestion-work
[Butt One More Thing]
Poop composition of gull flocks that eat garbage from landfills
https://www.sciencedirect.com/science/article/pii/S004313541730489X?via%3Dihub
Oops, all science this episode! Erstwhile editorial assistant Deboki Chakravarti steps in for erstwhile everyman Sam Schultz as we parse through fundamental puzzles about humanity: what makes us, us, and if it is hormones, does that make us cocktails or cauldrons?
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! A big thank you to Patreon subscribers Garth Riley and Glenn Trewitt for helping to make the show possible!
And go to https://store.dftba.com/collections/scishow-tangents to buy some great Tangents merch!
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
Hormones
[Truth or Fail]
https://vcresearch.berkeley.edu/news/trust-hormone-oxytocin-helps-old-muscle-work-new-study-finds
[Trivia Question]
Hormone-injected Judas goats to kill invasive species in Project Isabella
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3092746/
https://modernfarmer.com/2013/09/killing-goats-galapagos/
[Fact Off]
Bones make osteocalcin, which might be a hormone involved in stress reactions
https://www.cell.com/cell-metabolism/fulltext/S1550-4131(19)30441-3
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6335246/
https://journals.plos.org/plosgenetics/article?id=10.1371/journal.pgen.1008361
https://journals.plos.org/plosgenetics/article?id=10.1371/journal.pgen.1008714
Chrononutrition and breast milk hormones training babies’ circadian rhythms
[Ask the Science Couch]
Hormones (vs. neurotransmitters) and how they affect emotions
Serotonin
https://www.ncbi.nlm.nih.gov/books/NBK545168/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5864293/
Testosterone
https://www.sciencedirect.com/science/article/pii/S0033318213001333?via%3Dihub
https://onlinelibrary.wiley.com/doi/10.1111/andr.12867
Estrogen
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3753111/
https://jamanetwork.com/journals/jamapsychiatry/fullarticle/210086
Thyroid
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7612998/
https://www.sciencedirect.com/science/article/abs/pii/S0378512215006064
Puberty in general
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5192018/
https://journals.publishing.umich.edu/umurj/article/id/1383/
[Butt One More Thing]
Golden spiny mice poop hormones show that they've evolved to be nocturnal (even though they can be diurnal)
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0023446
It's the long-awaited cheese-stravaganza! And it's every bit as melty, crumbly, stretchy, and stinky as hoped for. We dip into some fetamology, we stretch our nokkeledge of cheese applications, and we unwrap the shocking tartrutho about a cheese we thought we knew!*
*The real cheese names I butchered into puns: feta, nokkelost, tartuffo. All delicious, go try some!
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! A big thank you to Patreon subscribers Garth Riley and Glenn Trewitt for helping to make the show possible!
And go to https://store.dftba.com/collections/scishow-tangents to buy some great Tangents merch!
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
[The Scientific Definition]
Cornish Yarg’s rind
Pule animal milk
Emmental cheese surroundings
[Trivia Question]
One of the oldest unopened cans of Cougar Gold cheese
https://archive.news.wsu.edu/news/2010/08/14/oldest-cougar-gold-cracked-open-still-tasty/
https://creamery.wsu.edu/about-us/history/
[Fact Off]
Using cheese to study the neuroscience of disgust because it’s not dangerous/unethical
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5065955/
https://www.sciencedirect.com/topics/psychology/disgust
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4687907/
Environmental remediation in Emeryville, CA using cottage cheese whey
[Ask the Science Couch]
“Addictive” qualities of cheese (contextualizing casomorphin and the endogenous opioid system)
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0117959
https://www.acs.org/molecule-of-the-week/archive/b/bovine-beta-casomorphin-7.html
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8345738/
https://efsa.onlinelibrary.wiley.com/doi/epdf/10.2903/j.efsa.2009.231r
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10486734/
[Butt One More Thing]
Cheese mites are pests but also delicacies in Mimolette and Milbenkäse
https://www.sciencedirect.com/science/article/pii/S0022030210003644
The question plaguing us this episode is, how dark can it really get? Turns out (according to some), not that dark! Unless you're at the bottom of the ocean or floating in the all too-eerie void of deep space, you're always gonna have some photons hitting your face. (I'm pretty sure I accidentally stole this rhyme right out of Hank's poem, but you'll just have to listen to know for sure...)
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! A big thank you to Patreon subscribers Garth Riley and Glenn Trewitt for helping to make the show possible!
And go to https://store.dftba.com/collections/scishow-tangents to buy some great Tangents merch!
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
[The Gauntlet]
Next December 23rd winter solstice
SOLAR spacecraft went down
Reorientation of sun instrument
23.5°S latitude alternate name
Tapetum lucidum color
Hormone in darkness
Famous winter solstice sunlight site
[Trivia Question]
Last December 23rd winter solstice
https://www.timeanddate.com/calendar/december-solstice.html
[Fact Off]
Carrots can help you make rhodopsin but not improve night vision
https://www.sciencefocus.com/the-human-body/do-carrots-help-you-see-in-the-dark
https://www.sciencefocus.com/the-human-body/do-carrots-really-help-you-see-in-the-dark
https://pubmed.ncbi.nlm.nih.gov/10484191/
https://www.livescience.com/carrots-see-in-the-dark.html
https://www.scientificamerican.com/article/fact-or-fiction-carrots-improve-your-vision/
Dogs are more likely to steal food disobediently when it’s dark
https://link.springer.com/article/10.1007/s10071-012-0579-6
https://www.sciencedaily.com/releases/2013/02/130211090840.htm
https://researchportal.port.ac.uk/en/persons/juliane-kaminski/publications/
[Butt One More Thing]
English words for excrement collectors (gong farmer, night soil men)
https://www.oed.com/dictionary/night-soil_n?tab=etymology
https://www.oed.com/dictionary/gong-farmer_n?tab=meaning_and_use#992848879
https://www.atlasobscura.com/articles/when-american-cities-were-full-of-crap
https://ojs.ethnobiology.org/index.php/ebl/article/view/1351/705
In this not-so-chill episode, everybody gets a little unsettled by the concepts around refrigeration. Quantum computers, thermoacoustics, molecular chemistry, elephants, the phantom letter "d" that gets added to the shortening of refrigeration...it's all just. So much.
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! A big thank you to Patreon subscribers Garth Riley and Glenn Trewitt for helping to make the show possible!
And go to https://store.dftba.com/collections/scishow-tangents to buy some great Tangents merch!
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
[This or That: Fridge or Not Fridge]
Ballpoint-pen-sized device with twisted nickel-titanium and water
Credit-card-sized device plugged into your phone with lithium bromide
Two large metal balls with ammonia and water
[Trivia Question]
Frigidaire had an elephant stand on their refrigerator as a strength test
https://www.mentalfloss.com/article/75945/15-icy-cool-facts-about-refrigeration
[Fact Off]
Dilution refrigeration and ultra-cold LEGOs
https://twist.phys.virginia.edu/work/Formal_Paper.pdf
https://www.lancaster.ac.uk/news/the-coolest-lego-in-the-universe
https://www.nature.com/articles/s41598-019-55616-7#Fig1
https://www.popularmechanics.com/science/a30337510/lego-bricks-heat-tolerance-quantum-computer/
Thermoacoustic refrigeration and the James Webb Space Telescope
[Ask the Science Couch]
Freezer smells and dehydration/oxidation affecting food taste
https://extension.umn.edu/preserving-and-preparing/science-freezing-foods
https://extension.psu.edu/understanding-the-process-of-freezing
https://theconversation.com/heres-why-your-freezer-smells-so-bad-and-what-you-can-do-about-it-203058
[Butt One More Thing]
USB drive found in volunteer-collected frozen leopard seal poop
https://niwa.co.nz/news/they-were-defrosting-leopard-seal-pooyou-wont-believe-what-happened-next
Do you hear what I hear? Probably not, because in this episode, we're bringing things down several notches to learn about quiet. Does it have a scientific definition? Is it all just relative? Should crickets have podcasts? Join us as we (ok, maybe not so) quietly contemplate quiet.
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! A big thank you to Patreon subscribers Garth Riley and Glenn Trewitt for helping to make the show possible!
And go to https://store.dftba.com/collections/scishow-tangents to buy some great Tangents merch!
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]
Larval reef fish bury their heads in the sand to reduce noise
Quieter Bison bulls get more mates
Dolphins quiet their clicks to ambush each other
[Trivia Question]
Loudness of lead singer in Billboard Hot 100 from 1946-2020
https://www.eurekalert.org/news-releases/986837
[Fact Off]
Water-based sound suppression systems for rocket launches
https://www.nas.nasa.gov/SC15/demos/demo10.html
https://www.sciencedirect.com/science/article/pii/S0022460X23003528
Small tree crickets use leaves to amplify their chirps
[Ask the Science Couch]
Quietest period in history of the Earth (of all time & anthropocene)
https://www.nature.com/articles/s41561-017-0051-y
https://www.sciencedirect.com/science/article/pii/S1342937X13000506?via%3Dihub
https://www.science.org/doi/10.1126/science.abd2438
[Butt One More Thing]
Unplanned 9/11 study shows whale poop stress levels associated with ship noise
https://royalsocietypublishing.org/doi/full/10.1098/rspb.2011.2429
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