On the Genesis of Species
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About this book
On the Genesis of Species is a work by St. George Mivart on the problem of the genesis of species. The text says that by the theory of Natural Selection light is thrown on the more singular facts relating to the geographical distribution of animals and plants. The examples include remains found in Australia of creatures closely allied to kangaroos and other kinds of pouched beasts, and sloths and armadillos found in South America and nowhere else.
The text contends that there are abundant reasons for thinking that the predominant agent in the production of the homologies of the limbs is an internal force or tendency. Lateral homology, or bilateral symmetry, is defined as the resemblance between the right and left sides of an animal, or of part of an animal. The text adds that it is not, of course, pretended that external conditions do not contribute their own effects in addition.
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Book facts
- Pages
- 283
- Language
- English
- Genre
- Biology
- Formats
- PDF, EPUB, Read online