著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Michael P. Taylor and Mathew J. Wedel,Why sauropods had long necks; and why giraffes have short necks,PeerJ,2167-8359,PeerJ,2013-02-12,1,,e36,https://cir.nii.ac.jp/crid/1363951794983589888,https://doi.org/10.7717/peerj.36