Natural selection can lead to some pretty amazing adaptations, but sometimes the resulting traits aren’t the most efficient solutions to the problems at hand. With the bar set to “good enough,” here are some features that arose from evolution which get the job done in strange or roundabout ways. Hosted by: Rose Bear Don't Walk SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at www.scishowtangents.org ---------- Support SciShow by becoming a patron on Patreon: www.patreon.com/scishow ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Silas Emrys, Charles Copley, Jb Taishoff, Jeffrey Mckishen, James Knight, Christoph Schwanke, Jacob, Matt Curls, Christopher R Boucher, Eric Jensen, LehelKovacs, Adam Brainard, Greg, Ash, Sam Lutfi, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, charles george, Alex Hackman, Chris Peters, Kevin Bealer ---------- Looking for SciShow elsewhere on the internet? Facebook: www.facebook.com/scishow Twitter: www.twitter.com/scishow Tumblr: scishow.tumblr.com Instagram: instagram.com/thescishow ---------- Sources: Photosynthesis doi.org/10.2210/rcsb_pdb/mom_2000_11 doi.org/10.1199/tab.0130 doi.org/10.1042/bss0610001 doi.org/10.1098/rstb.2005.1737 www.khanacademy.org/science/biology/photosynthesis-in-plants/photorespiration--c3-c4-cam-plants/a/c3-c4-and-cam-plants-agriculture doi.org/10.1093/jxb/ern081 doi.org/10.1093/jexbot/53.369.569 doi.org/10.1111/j.1469-8137.2004.00974.x doi.org/10.1016/j.cub.2013.04.066 doi.org/10.1093/jxb/erw156 Marsupials www.academia.edu/download/45849422/The_marsupial_pouch_implications_for_rep20160522-22723-1vg6ypc.pdf books.google.com/books?hl=en&lr=&id=zunYrumtsR8C&oi=fnd&pg=PA213&dq=marsupial+sex+organs&ots=3DsCMRupXv&sig=ReCoxZM96w1nMLWaNIgI_tozEes#v=onepage&q=marsupial%20sex%20organs&f=false doi.org/10.1111/j.1558-5646.2009.00690.x www.researchgate.net/publication/228671434_To_replace_or_not_to_replace_The_significance_of_reduced_functional_tooth_replacement_in_marsupial_and_placental_mammals The RLN www.science.org.au/curious/earth-environment/why-evolution-isnt-perfect www.ncbi.nlm.nih.gov/books/NBK560832/ www.ncbi.nlm.nih.gov/books/NBK470179/ doi.org/10.4202/app.2011.0019 arxiv.org/pdf/1901.01560.pdf Eyes evolution.berkeley.edu/evolibrary/article/side_0_0/eyeworks_01 www.pbs.org/wgbh/evolution/change/grand/page06.html dx.doi.org/10.1038%2Fnrn2283 doi.org/10.1007/s12052-008-0091-2 doi.org/10.1038/eye.2017.226 Bipedalism www.sciencemag.org/news/2013/02/human-evolution-gain-came-pain doi.org/10.3390/biomimetics4030060 doi.org/10.1038/46965 journals.co.za/doi/10.10520/AJA00382353_7777 doi.org/10.1002/ajpa.10058 jaoa.org/aoa/content_public/journal/jaoa/938176/622.pdf Image Sources: www.istockphoto.com/photo/human-evolution-concept-gm534666343-57025144 www.istockphoto.com/photo/small-plant-growing-in-garden-with-sunlight-gm1098175106-294925383 www.istockphoto.com/photo/close-up-of-agave-succulent-plants-selective-focus-toning-gm644186460-116811255 www.istockphoto.com/photo/ripe-sorghum-milo-millet-crop-field-in-rows-gm503285337-44539474 www.istockphoto.com/photo/a-mother-opossum-with-its-four-babies-on-the-pavement-gm145992459-6021241 www.istockphoto.com/photo/kangaroo-and-joey-gm183412961-15481964 www.istockphoto.com/photo/koala-with-joey-gm1043281514-279279126 www.istockphoto.com/photo/pretty-faced-wallaby-gm1187266245-335312813 www.istockphoto.com/photo/western-grey-kangaroos-hopping-in-the-pinnacles-desert-near-cervantes-in-western-gm1280454033-378751604 commons.wikimedia.org/wiki/File:Recurrent_laryngeal_nerve.svg commons.wikimedia.org/wiki/File:GiraffaRecurrEn.svg www.istockphoto.com/photo/morula-early-stage-embryo-gm1199299494-343074205 commons.wikimedia.org/wiki/File:Guiyu_BW.jpg www.istockphoto.com/photo/human-dark-brown-eyes-close-up-side-look-gm1207350570-348567451 en.wikipedia.org/wiki/File:Evolution_eye.svg www.istockphoto.com/photo/common-octopus-gm894399752-247279301 www.istockphoto.com/photo/pharaoh-cuttlefish-sepia-pharaonis-his-right-eye-north-sulawesi-indonesia-gm97881808-12318152 www.eurekalert.org/multimedia/pub/196779.php commons.wikimedia.org/wiki/File:Diagram_of_eye_evolution.svg www.istockphoto.com/photo/running-on-tracks-gm616002088-107046357 commons.wikimedia.org/wiki/File:Stegosaurus_Senckenberg_white_background.jpg www.istockphoto.com/photo/3d-illustration-of-human-body-spinal-bone-anatomy-gm952777260-260108613

Be the first to comment