This stunning bird is a peacock. Do you know why he is spreading out his big, colorful tail feathers like a fan? He is trying to attract a female for mating. Many other vertebrates have similar behaviors for attracting mates. Even fish display some remarkably sophisticated mating behaviors.
Fish and birds are both vertebrates. Vertebrates are a diverse and fascinating group of animals. In many ways, they are very different from the invertebrates described in previous chapters. Elaborate mating behaviors are just one way they differ. This chapter describes many other differences between vertebrates and invertebrates. It also describes in detail the classes of vertebrates from fish to birds.
Opening image copyright J. McPhail, 2010. http://www.shutterstock.com. Used under license from Shutterstock.com.
For first Table in chapter 19, from top to bottom,
- Courtesy of the US National Oceanic and Atmospheric Administration.http://en.wikipedia.org/wiki/File:Pacific_hagfish_Myxine.jpg. Public Domain.
- Image copyright Andrei Nekrassov, 2010. http://www.shutterstock.com. Used under license from Shutterstock.com.
- Image copyright Andreas Meyer, 2010. http://www.shutterstock.com. Used under license from Shutterstock.com.
- Courtesy of the US Department of Agriculture.http://en.wikipedia.org/wiki/File:YellowPerch.jpg. Public Domain.
- Image copyright Sergey Mikhaylov, 2010. http://www.shutterstock.com. Used under license from Shutterstock.com.
- Jerry Hsu (jerryhsu2k). http://www.flickr.com/photos/jerryhsu2k/295416147/. CC-BY-NC-SA 2.0.
- Courtesy of the US Fish and Wildlife Service.http://commons.wikimedia.org/wiki/File:Alligator.jpg. Public Domain.
- Image copyright Steve Byland, 2010. http://www.shutterstock.com. Used under license from Shutterstock.com.
- Courtesy of Terry Tollefsbol/US Fish and Wildlife Service.http://commons.wikimedia.org/wiki/File:Grizzly_Bear_Yellowstone.jpg. Public Domain.
For second Table in chapter 19, from top to bottom,
- Bernardo Lopez (blfotografia).http://www.flickr.com/photos/bernardolopez/4166625230/. CC-BY-NC-SA 2.0.
- Knutschie. http://commons.wikimedia.org/wiki/File:Tuatara.jpg. Public Domain.
- Brian Gratwicke (brian.gratwicke).http://www.flickr.com/photos/briangratwicke/5110276531/. CC-BY 2.0.
- Trisha Shears.http://commons.wikimedia.org/wiki/File:Diamondback_Terrapin.jpg. Public Domain.
For third Table in chapter 19, from top to bottom,
- Wayne Dumbleton (dracobotanicus).http://www.flickr.com/photos/dracobotanicus/3485591969/. CC-BY-NC-SA 2.0.
- Image copyright John A. Anderson, 2010. http://www.shutterstock.com. Used under license from Shutterstock.com.
- Image copyright Tomasz Parys, 2010. http://www.shutterstock.com. Used under license from Shutterstock.com.
- Steve Jurvetson. http://en.wikipedia.org/wiki/File:Hawk_eating_prey.jpg. CC-BY 2.0.
- José Reynaldo da Fonseca.http://commons.wikimedia.org/wiki/File:Coruja_buraqueira_%282%29_REFON_.jpg. CC-BY 2.5.
- Image copyright Cynthia Kidwell, 2010. http://www.shutterstock.com. Used under license from Shutterstock.com.
- Leo (0ystercatcher). http://www.flickr.com/photos/0ystercatcher/5284702574/. CC-BY-NC-SA 2.0.
CK-12 Foundation is licensed under Creative Commons AttributionNonCommercial 3.0 Unported (CC BY-NC 3.0)”
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