Quellen:

https://www.google.ch/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwjHksTzvbTQAhVC7xQKHU8kCscQjRwIBw&url=http%3A%2F%2Fhunde-zu-verschenken.com%2Fpro-hunde-zu-verschenken%2F&psig=AFQjCNFvE33sK7_2qrmpzVBtrNmEZJJVHQ&ust=1479633323682139

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https://www.google.ch/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwjJgs7awrTQAhXFtxQKHda5BM0QjRwIBw&url=http%3A%2F%2Fwww.dogland.at%2Fanatomie-2.html&bvm=bv.139250283,d.d24&psig=AFQjCNE-l_--pLkNrgxofhpr5JQszu1P0g&ust=1479634637883612

https://www.google.ch/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwiNh-vOx7TQAhVDrRoKHThICOQQjRwIBw&url=https%3A%2F%2Fwww.hundefutter-kaltgepresst.com%2F&bvm=bv.139250283,d.d24&psig=AFQjCNHXWHp0k9pX6gUplFCUC3W2n0ahSA&ust=1479635949689402

https://pokemonexperte.de/artikel/images/fanwork_zeichnen_Hundeskelett.bmp

http://www.bing.com/images/search?q=hunde&view=detailv2&&id=71264F1C500DE68B3A7D0090E45E32867A7799D6&selectedIndex=8&ccid=YO0FyYVQ&simid=607995094950611843&thid=OIP.M60ed05c985502c53596f99c4e06369f0H0&ajaxhist=0

http://www.bing.com/images/search?q=hunde&view=detailv2&id=75E1E59A14E974D78628C437FC61390B555D078F&selectedindex=13&ccid=0aTR9n1g&simid=608002821596972019&thid=OIP.Md1a4d1f67d60edf3df9c7a500c611b74o0&mode=overlay&first=1

http://www.bing.com/images/search?q=hunde&view=detailv2&id=408FB1FB96EE29636A800A465051123F2B722846&selectedindex=22&ccid=NBDUQxy2&simid=608053244503851117&thid=OIP.M3410d4431cb6b885db86bf264bdf76e9o0&mode=overlay&first=1