English: Montage of examples of major classes of vertebrates. All images from WikiCommons.
Attributes of original images below.
"Jõesilmud2" by Tiit Hunt - Own work. Licensed under CC BY-SA 3.0 via Commons - https://commons.wikimedia.org/wiki/File:J%C3%B5esilmud2.jpg#/media/File:J%C3%B5esilmud2.jpg
"Tiburón" by original author is Fbattail , the image is cropped by Chris huh - Original image: Carcharhinus-amblyrynchos.jpg by Fbattail at fr.wikipedia, March 14, 2004cropped image: Greyreefsharksmall.jpg by Chris huh at en.wikipedia, August 29. 2006Transfered to Commons by Harryemi, September 21, 2008. Licensed under CC BY-SA 3.0 via Commons - https://commons.wikimedia.org/wiki/File:Tibur%C3%B3n.jpg#/media/File:Tibur%C3%B3n.jpg
Eric Engbretson for U.S. Fish and Wildlife Servicehttp://images.fws.gov/default.cfm?fuseaction=records.display&CFID=5400462&CFTOKEN=69459066&id=D5592375-C7B8-49C7-A38CD511E25A86BF
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