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Interactive video lesson plan for: Why No Giant Mammals?

Activity overview:

Hank gives a quick run-down of the reasons scientists think the land mammals of today are nowhere near the size of the largest sauropods. Some of them might surprise you!

If you liked this video, check out more videos about natural history and paleontology on SciShow's sister channel, Eons: https://www.youtube.com/eons

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SOURCES
http://news.discovery.com/animals/how-dinosaurs-got-so-big-120131.html
http://dinosaurs.about.com/od/dinosaurevolution/a/bigdinos.htm
http://www.newscientist.com/article/dn19771-why-mammals-grew-big--and-then-stopped.html
http://www.scientificamerican.com/article.cfm?id=land-size-limits-body-size
http://ngm.nationalgeographic.com/ngm/0507/resources_who.html
http://earthsky.org/earth/felisa-smith-why-mammals-havent-out-sized-biggest-dinosaurs
http://www.sciencemag.org/content/330/6008/1216.abstract
http://www.cam.ac.uk/research/features/mammals-vs-dinosaurs
http://blogs.smithsonianmag.com/dinosaur/2012/06/when-mammals-ate-dinosaurs/
http://svpow.com/2013/02/19/personal-milestones-publishing-the-ph-d
http://www.slate.com/articles/news_and_politics/explainer/2009/02/a_snake_the_size_of_a_plane.html
http://www.dinodatabase.com/dinorcds.asp
http://voices.yahoo.com/indricotherium-largest-land-mammal-ever-237482.html
http://science.kqed.org/quest/2010/03/17/the-largest-land-mammal-that-ever-lived/
http://phenomena.nationalgeographic.com/2013/02/25/dinosaur-reproduction-not-ancient-gravity-made-sauropods-super-sized/
http://www.popsci.com/science/article/2012-02/hot-weather-makes-mammals-smaller-%E2%80%94%C2%A0what-does-mean-global-warming
http://scienceline.ucsb.edu/getkey.php?key=427
http://www.smithsonianmag.com/science-nature/dinosaurs/How-to-Build-a-Giant-Dinosaur.html
http://www.plosone.org/article/info:doi/10.1371/journal.pone.0028442
http://www.nmfs.noaa.gov/pr/species/mammals/cetaceans/bluewhale.htm

Tagged under: mammal,terrestrial,dinosaur,scishow,science,paleontology,land,fossil,limiting factor,size,diversity,live young,pregnancy,gestation,herbivore,climate,ecology,vegetation,sauropod,environment,skeletal system,endothermic,warm-blooded,hank green,education

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