When Birds Stopped Flying

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Ratites have spread to Africa, Australia, New Zealand, and South America. And there are fossils of Ratites in Europe, Asia, and North America too. That’s a lot of ground to cover for birds that can’t fly. So how did Ratites end up all over the world?

Thanks to Ceri Thomas for the Lithornithid reconstruction. Check out more of Ceri's paleoart at http://alphynix.tumblr.com and http://nixillustration.com

Thanks as always to Nobu Tamura for allowing us to use his wonderful paleoart: http://spinops.blogspot.com/

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References:
http://www.pnas.org/content/early/2014/03/14/1314972111
https://researchcommons.waikato.ac.nz/handle/10289/5990
https://www.sciencedirect.com/science/article/pii/S0277379109003953
https://www.sciencedirect.com/science/article/pii/S0168583X09011550
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0016670
https://www.researchgate.net/publication/228865624_New_fossil_ratite_Aves_Palaeognathae_eggshell_discoveries_from_the_Late_Miocene_Baynunah_Formation_of_the_United_Arab_Emirates_Arabian_Peninsula
https://www.jstor.org/stable/3545707
http://www.pnas.org/content/115/7/1546
https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1365-2699.2008.01923.x
https://www.nature.com/articles/nature01871
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2791642/
https://www.sciencedirect.com/science/article/pii/S0277379110002246
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1810089/
http://science.sciencemag.org/content/324/5923/42
https://www.nature.com/articles/nature01838
https://academic.oup.com/biolinnean/article/112/4/688/2415821
http://digitallibrary.amnh.org/handle/2246/5660
https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1365-2699.2010.02390.x
http://science.sciencemag.org/content/344/6186/898.full
http://rspb.royalsocietypublishing.org/content/276/1672/3395
https://digital.library.adelaide.edu.au/dspace/handle/2440/77117
http://www.pnas.org/content/110/42/16910
https://dspace.flinders.edu.au/xmlui/handle/2328/35951
https://www.ncbi.nlm.nih.gov/pubmed/27989673
https://www.tandfonline.com/doi/full/10.1080/02724634.2015.1031345
https://www.notornis.osnz.org.nz/notes-weight-flying-ability-habitat-and-prey-haasts-eagle-harpagornis-moorei
https://www.jstor.org/stable/2462941
https://onlinelibrary.wiley.com/doi/abs/10.1002/jmor.1052130108

Видео When Birds Stopped Flying канала PBS Eons