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Who is natural?. A. B. BOTH!! But How?. SELECTIVE BREEDING. Definition. “in domesticated animals is the process of a breeder developing a cultivated breed over time”— wikipedia. Historically. Charles Darwin Origin of Species —1859 Journey of the Beagle
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Who is natural? A B
BOTH!! But How? SELECTIVE BREEDING
Definition • “in domesticated animals is the process of a breeder developing a cultivated breed over time”—wikipedia
Historically • Charles Darwin • Origin of Species—1859 • Journey of the Beagle • Finches with different attributes on the Galapagos islands
What do you do? • Picking out desirable qualities to pass on to offspring • Breed the appropriate male and female species together to produce that offspring • Rebreed as many times as necessary to get the desire traits
Techniques • Inbreeding: breeding between close relatives • Can lock in desirable traits to a population • Linebreeding: like inbreeding, but farther away relatives (i.e. cousins) • Can lock in desirable traits without causing damage to population • Outcrossing: introducing new traits • Introduce desirable traits
Why? • Show dogs • Cattle • Horse racing