Millions of years ago, dinosaurs roamed the Earth! But so did lots of other giant creatures that looked a lot like dinosaurs... but weren't! Our friend Dino stops by to show us how we can tell dinosaurs apart from other animals that flew in the skies and swam in the oceans of prehistoric Earth! Do you have any questions about dinosaurs, or anything else about nature, or outer space, or machines, then let us know by leaving a comment or emailing us at kids@thescishow.com. ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: dftba.com/SciShow Or help support us by becoming our patron on Patreon: www.patreon.com/scishow ---------- 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: gimpasaura.blogspot.com/2015/02/pterosaurs-are-not-dinosaurs.html www.ucmp.berkeley.edu/diapsids/avians.html eesc.columbia.edu//courses/v1001/dinosaur_def.html dinosaurs.about.com/od/dinosaurbasics/a/definition.htm

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