Talk Origins Archive
The Origin of Species, Chapter 14
The entire text of Charles Darwin's book, The Origin of Species is available on this site. This link is specifically for the chapter that discusses embryology as evidence for evolution.
Encyclopedia of Earth
Encyclopedia of Earth: Biodiversity: Species
Defines the term species and the origin of the concept. Provides estimates of numbers of species in different biological categories, explains what endangered species are, and what ring species are. (Published: May 26, 2010)
Blackdog Media
Classic Reader: Authors: Charles Darwin
This site features the author Charles Darwin including the full text of the nonfiction book Origin of Species.
Other
Sdnhm: Mangrove Wetlands
Students examine the mangrove wetlands. Some topics included are the origin of mangroves, mangrove species, mangrove forests, and the protection of mangrove forests.
A-Z Animals
A Z Animals: Animal Facts: Silver Dollar (Metynnis Argenteus)
Provides photographs and facts about the silver dollar, a freshwater tropical fish. Discusses their popularity for aquariums, where they originate, their behavior, diet, predators, lifespan and reproduction, and care when kept in an...