A species of ant has been discovered to rescue and tend to the battle wounds of other ants injured while hunting, and scientists think that this is the first time this behavior has ever been observed in insects.

Thumbnail photo by Erik T. Franks

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Sources:
https://www.eurekalert.org/emb_releases/2018-02/uow-mcf020918.php
http://dx.doi.org/10.1098/rspb.2017.2457
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http://www.sciencemag.org/news/2018/02/major-mental-illnesses-unexpectedly-share-brain-gene-activity-raising-hope-better


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It’s pretty well known that Australia is home to some strange animals, but echidnas are especially weird evolutionary misfits.

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Sources:
http://www.nationalgeographic.com.au/animals/how-the-platypus-and-echidna-lost-their-stomachs.aspx
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http://www.jstor.org/stable/10.1086/522847?seq=2 #page_scan_tab_contents
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https://www.researchgate.net/publication/290413985_Marsupial_and_Monotreme_Evolution_And_Biogeography

Image Sources:
https://commons.wikimedia.org/wiki/File :Heteropoda_venatoria_-_female_at_Mechode_Padur.jpg
https://commons.wikimedia.org/wiki/File :CSIRO_ScienceImage_10356_Superb_Lyrebird.jpg
https://commons.wikimedia.org/wiki/File :Monotreme_reproductive_organs.png


Proud of what you just did in the bathroom? You should be, but here are 6 animals who are masters of the art of pooping!

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Sources:

https://io9.gizmodo.com/5872472/the-wombats-cubic-poop-is-one-of-natures-weirdest-superpowers
https://theconversation.com/why-do-wombats-do-cube-shaped-poo-55975
http://www.jstor.org/stable/3797445
https://www.birdwatchingdaily.com/blog/2015/02/25/julie-craves-explains-droppings-reveal-wild-turkeys/
https://link.springer.com/article/10.1007 %2Fs00300-003-0563-3
http://mentalfloss.com/article/70087/some-penguins-are-projectile-poopers
https://www.livescience.com/59601-why-do-animals-eat-poop.html
http://onlinelibrary.wiley.com/doi/10.1046/j.1344-3941.2003.00124.x/full
https://www.reed.edu/biology/professors/srenn/pages/teaching/web_2008/ryaw_site/index.html
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https://www.wired.com/2015/06/absurd-creature-of-the-week-tortoise-beetle/
http://www.pnas.org/content/97/6/2632.long
https://www.wired.com/2012/08/blue-whale-poop/
http://rspb.royalsocietypublishing.org/content/277/1699/3527.full
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0013255
https://www.npr.org/sections/krulwich/2014/04/03/298778615/the-power-of-poop-a-whale-story
https://www.livescience.com/8788-whale-poo-ocean-miracle-grow.html

PICS

https://en.wikipedia.org/wiki/File :Vombatus_ursinus_-Maria_Island_National_Park.jpg

https://en.wikipedia.org/wiki/File :Certified_Wombat_Faeces.jpg

https://commons.wikimedia.org/wiki/File :Sperm_whale_pod_recolored.jpg

https://commons.wikimedia.org/wiki/File :Sperm_whale_Tim_Cole_NMFS_crop.jpg

https://commons.wikimedia.org/wiki/File :Sperm_whale_drawing_with_skeleton.jpg

https://commons.wikimedia.org/wiki/File :Flickr_-_don_macauley_-_Deadly_Nightshade.jpg

https://commons.wikimedia.org/wiki/File :Southern_Hairy-nosed_Wombat.jpg


Not everyone gets a winter as cold (or at the same time) as we do at SciShow, but no matter where you live, you may have wondered why venturing out into the cold often makes you have to pee more often.

Hosted by: Hank Green
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Sources:
http://europepmc.org/abstract/med/1811574
https://pdfs.semanticscholar.org/f5ff/aea5b6ba2b5d56b41d31e5dc3f90c0553c98.pdf
http://www.sciencedirect.com/science/article/pii/0163725882900675
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.739.1593& ;amp;rep=rep1&type=pdf
http://www.tandfonline.com/doi/abs/10.1080/00039896.1974.10666581?journalCode=vzeh20
http://www.sciencedirect.com/science/article/pii/S0306456599000856
https://www.ncbi.nlm.nih.gov/books/NBK232870/
https://www.researchgate.net/publication/8553221_Human_Physiological_Responses_to_Cold_Exposure


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Thunder is not something you normally associate with a winter storm. However, if the conditions are right, you might experience thundersnow.

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Sources:
https://science.howstuffworks.com/nature/climate-weather/storms/question646.htm
https://weather.com/science/news/what-thundersnow-and-why-does-it-happen-20140218
https://www.accuweather.com/en/weather-news/what-is-a-blizzard/5674708
https://www.conserve-energy-future.com/facts-effects-and-formation-of-blizzards.php
http://www.madsci.org/posts/archives/1998-10/909280669.Ph.r.html
https://www.quora.com/Why-is-the-sky-in-summer-hazy-white-or-lighter-blue-while-in-the-winter-its-dark-blue
https://www.nssl.noaa.gov/education/svrwx101/thunderstorms/faq/
https://smile.amazon.com/Rain-Natural-Cultural-Cynthia-Barnett/dp/0804137110/
https://www.quora.com/Why-dont-cumulonimbus-clouds-form-during-the-winter
https://www.quora.com/Why-does-it-get-windy-before-rain
https://www.weatherworksinc.com/cloud-types
https://www.quora.com/Do-clouds-form-in-the-winter-And-how
https://scijinks.gov/clouds/
http://indianapublicmedia.org/amomentofscience/thunder-snow/
https://www.boston.com/news/weather/2018/01/04/thundersnow-massachusetts-rhode-island
https://sites.psu.edu/siowfa15/2015/10/04/is-thunder-during-snowstorms-dangerous/
http://wxguys.ssec.wisc.edu/2016/02/08/what-is-thundersnow/
https://science.howstuffworks.com/nature/climate-weather/storms/noreaster1.htm
https://www.nbcnews.com/news/weather/video/nor-easter-aims-for-east-coast-boston-may-see-thundersnow-872534595566
https://www.scientificamerican.com/article/thundersnow-storm/
https://www.popsci.com/winter-storm-thundersnow

Images:
https://commons.wikimedia.org/wiki/File :Anvil_shaped_cumulus_panorama_edit_crop.jpg
https://commons.wikimedia.org/wiki/File :Fullerton_harbor_looking_south_Chicago_Feb_2_2011_storm.JPG
https://commons.wikimedia.org/wiki/File :March_2014_nor%27easter_2014-03-26.jpg


Bacteria have evolved some pretty incredible abilities. They may never star in a big summer movie, but here are six bacteria with amazing superpowers.

Thank you to Derek Lovley for the use of his photo of Geobacter metallireducens. You can see more of his research here: http://geobacter.org/

Hosted by: Michael Aranda
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Sources:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC33863/
http://www.genomenewsnetwork.org/articles/04_02/geobacter.shtml
https://www.nature.com/articles/416767a
http://www.bbc.com/earth/story/20150730-ten-bacteria-with-superpowers
http://www.genomenewsnetwork.org/articles/07_02/deinococcus.shtml
https://phys.org/news/2016-03-newly-bacteria-plastic-bottles.html
http://science.sciencemag.org/content/351/6278/1154
http://science.sciencemag.org/content/351/6278/1196
http://www.nature.com/news/2006/060410/full/news060410-1.html
https://www.livescience.com/18381-bacterial-glue-stickiest-substance-nsf-ria.html
http://www.indiana.edu/ ~rcapub/v29n1/glue.shtml
https://blogs.scientificamerican.com/lab-rat/sticky-bacteria-and-the-benefits-of-staying-still
http://www.pnas.org/content/103/15/5764
https://www.newscientist.com/article/dn13666-sexually-transmitted-bug-is-the-strongest-organism/
http://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.0060087
https://www.livescience.com/54901-free-radicals.html
http://www.rcn.montana.edu/Organisms/Detail.aspx?id=290
https://www.nature.com/scitable/blog/microbe-matters/aquifex_to_the_rescue
----------
http://www.sciencephoto.com/set/1446/batteries-from-bugs
https://en.wikipedia.org/wiki/Deinococcus_radiodurans #/media/File:Deinococcus_radiodurans.jpg
https://en.wikipedia.org/wiki/Food_irradiation #/media/File:HD.6B.452_(11984638133).jpg
https://apod.nasa.gov/apod/ap060122.html
http://www.thinkstockphotos.com/image/stock-photo-shawarma-sandwich-fresh-roll-of-thin-lavash/629227772/popup?sq=shawarma/f=CPIHVX/s=DynamicRank
http://www.thinkstockphotos.com/image/stock-photo-23642036/87492882/popup?sq=M %7CImages%20similar%20to:%2087475842%7C87475842/f=CPIHVX/s=DynamicRank
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http://www.thinkstockphotos.com/image/stock-photo-row-of-empty-plastic-bottles/sb10067658u-001/popup?sq=plastic/f=CPIHVX/s=DynamicRank
https://commons.wikimedia.org/wiki/File :Caulobacter_crescentus.jpg
http://www.thinkstockphotos.com/image/stock-photo-petri-dishes-with-bacterial-colonies/149300721/popup?sq=M %7CImages%20similar%20to:%2081295672%7C81295672/f=CPIHVX/s=DynamicRank
http://www.thinkstockphotos.com/image/stock-photo-madagascar-day-gecko/453286385/popup?sq=geko/f=CPIHVX/s=DynamicRank
http://www.thinkstockphotos.com/image/stock-illustration-metal-tube-of-super-glue/492314334/popup?sq=super %20glue/f=CPIHVX/s=DynamicRank
http://www.thinkstockphotos.com/image/stock-illustration-vector-car-template-isolated-on-white/693332572/popup?sq=car/f=CIHVX/s=DynamicRank
http://www.thinkstockphotos.com/image/stock-photo-differentiation-of-bacteria/532562968/popup?sq=M %7CImages%20similar%20to:%2081295672%7C81295672/f=CPIHVX/s=DynamicRank
http://www.thinkstockphotos.com/image/stock-photo-grand-prismatic-spring/98274398/popup?sq=yellowstone %20bacteria%20mat/f=CPIHVX/p=4/s=DynamicRank
http://www.thinkstockphotos.com/image/stock-photo-bacteria-mat-at-fountain-paint-pots-trail/899225196
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https://en.wikipedia.org/wiki/File :Gonococcal_urethritis_PHIL_4085_lores.jpg
http://www.thinkstockphotos.com/image/stock-photo-bacteria-gonococcus-or-meningococcus/619762406/popup?sq=K %7Cgonorrhea%20bacterium%7C66104/f=CPIHVX/s=DynamicRank
http://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.0060087
https://en.wikipedia.org/wiki/File :Neisseria_gonorrhoeae_Growth_on_New_York_City_Agar_Plate.jpg
http://www.thinkstockphotos.com/image/stock-illustration-money-super-hero-or-heroic-gold-coin/499307620
http://www.thinkstockphotos.com/image/stock-illustration-flat-design-germs-and-bacteria-icons/696251788


Winning an alpine skiing race can come down to a tiny margin, so the skiers have to make sure they prepare their skis just right!

Hosted by: Olivia Gordon
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Sources:
https://the-raceplace.com/pages/ski-wax-faqs
https://spacemath.gsfc.nasa.gov/earth/88Mod11Prob1.pdf
https://www.accuweather.com/en/weather-news/what-are-snow-ratios/4786333
http://fasterskier.com/fsarticle/swix-a-perfect-wax-for-every-condition/

Images:
https://commons.wikimedia.org/wiki/File :Alpine_skiing_at_the_1980_Winter_Olympics.jpg
https://commons.wikimedia.org/wiki/File :Winter_ski_wax_-_Fort_Devens_Museum_-_DSC07132.JPG


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Last week, a group of researchers unveiled a vaccine that cures cancer in mice, and if we can get it to work in humans, it will save a lot of lives.

Hosted by: Hank Green
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Sources:
http://stm.sciencemag.org/content/10/426/eaan4488.full
https://www.cdc.gov/vaccines/hcp/conversations/downloads/vacsafe-understand-color-office.pdf
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4635874/
https://www.sciencedirect.com/science/article/pii/S0959804915008205
http://med.stanford.edu/news/all-news/2018/01/cancer-vaccine-eliminates-tumors-in-mice.html
https://www.cancer.gov/about-cancer/causes-prevention/vaccines-fact-sheet
----------
Images:
http://www.thinkstockphotos.com/image/stock-illustration-cell-mediated-immunity/524530218/popup?sq=immune %20system/f=CPIHVX/s=DynamicRank
http://www.thinkstockphotos.com/image/stock-photo-vials-and-syringe-on-blue-table-top-elevated/867398442/popup?sq=vaccine/f=CPIHVX/s=DynamicRank
https://commons.wikimedia.org/wiki/File :Invasive_Ductal_Carcinoma_40x.jpg
https://commons.wikimedia.org/wiki/File :Acute_leukemia-ALL.jpg
https://commons.wikimedia.org/wiki/File :Hodgkin_lymphoma,_nodular_lymphocyte_predominant_-_high_power_view_-_H%26E_-_by_Gabriel_Caponetti.jpg
http://www.thinkstockphotos.com/image/stock-photo-3d-illustration-of-a-cancer-cell-and/888730408
http://www.thinkstockphotos.com/image/stock-photo-microscopic-image-of-kidney-carcinoma/AA003914
http://www.thinkstockphotos.com/image/stock-photo-eexperimental-white-mouse-on-the-researcher-s/639064242


Many of us have longed for cool sci-fi inventions like a holodeck or replicators, but there's one tool we're actually getting pretty darn close to creating: the medical tricorder.

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Sources:

http://memory-alpha.wikia.com/wiki/Medical_tricorder
https://www.fastcompany.com/40406304/more-star-trek-tech-in-real-life-the-qualcomm-tricorder-xprize
https://www.forbes.com/sites/kevinanderton/2016/09/29/star-trek-science-how-a-medical-tricorder-work-infographic/
http://www.northcentralsurgical.com/blog/whats-the-difference-between-an-x-ray-ct-scan-and-mri-140.html
https://www.stabroeknews.com/2014/opinion/letters/02/05/major-government-hospitals-ct-scanners/
http://www.tandfonline.com/doi/full/10.1586/17434440.2015.1050957
https://arstechnica.com/science/2017/04/underdog-team-wins-millions-in-competition-to-make-real-life-tricorder/
https://www.scientificamerican.com/article/how-close-are-we-to-a-real-star-trek-style-medical-tricorder/
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Images:

https://www.flickr.com/photos/bojo/4078685614
https://en.wikipedia.org/wiki/File :Siemens_Magnetom_Aera_MRI_scanner.jpg

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https://www.dafont.com/hemi-head.font?fpp=100& ;amp;l[]=10&l[]=1&text=tricorder


Our interpersonal relationships start forming as soon as we’re born, and psychologists have studied how those early connections can set the stage for the other relationships we form later in life.

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If you've ever associated a smell with old age, you weren't imagining it—it all has to do with the chemistry of our skin.

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Sources:
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https://pixabay.com/en/roses-rosebush-flowers-blooming-1198495/


Your urine is mostly water, but hidden in there are trace amounts of some very useful stuff!

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https://commons.wikimedia.org/wiki/File :Human_embryonic_stem_cells.png
https://commons.wikimedia.org/wiki/File :Gray1123.png


Most people know that they don't need their appendix, but what other organs can humans live without?

Hosted by: Hank Green
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We're taught to be cool around strange dogs because they smell fear, and that might be true, but your fear is probably freaking them out too!

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Sources:

http://www.sciencedirect.com/science/article/pii/S1558787816301691
http://www.pbs.org/wgbh/nova/nature/dogs-sense-of-smell.html
http://www.sciencemag.org/news/2016/08/video-your-dog-understands-more-you-think
https://chd.ucsd.edu/_files/winter2009/hare.tomasello.dogs.2005.pdf
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http://www.sciencedirect.com/science/article/pii/S0166432816300699


The way your brain reacts to stimuli might tell us more about who you're friends with, and swatting at mosquitoes might one day bring us positive results.

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Sources:

http://nature.com/articles/doi :10.1038/s41467-017-02722-7
https://press.nature.com/?post_type=press_release& ;amp;p=103587
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