A placebo can only work if someone (or something) believes it will. So how can animals be fooled by the placebo effect? Hosted by: Olivia Gordon Head to scishowfinds.com/ for hand selected artifacts of the universe! ---------- Support SciShow by becoming a patron on Patreon: www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: Jerry Perez, Lazarus G, Sam Lutfi, Kevin Knupp, Nicholas Smith, D.A. Noe, alexander wadsworth, سلطان الخليفي, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, Bader AlGhamdi, James Harshaw, Patrick D. Ashmore, Candy, Tim Curwick, charles george, Saul, Mark Terrio-Cameron, Viraansh Bhanushali. Kevin Bealer, Philippe von Bergen, Chris Peters, Justin Lentz ---------- 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: www.bbc.com/earth/story/20161017-why-animals-experience-the-placebo-effect-much-like-we-do www.ncbi.nlm.nih.gov/pubmed/19912522 sciencebasedmedicine.org/is-there-a-placebo-effect-for-animals/ skeptvet.com/Blog/2018/03/presentation-of-placebos-in-animals/ www.the-scientist.com/?articles.view/articleNo/33468/title/Rats-Get-Placebo-Effect/ journals.lww.com/pain/Abstract/2012/10000/Placebo_induced_analgesia_in_an_operant_pain_model.8.aspx www.ncbi.nlm.nih.gov/pubmed/7063864 veterinaryrecord.bmj.com/content/early/2017/03/07/vr.104168 Sound: freesound.org/people/InspectorJ/sounds/415510/