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CHAPTER 14

CHAPTER 14. THE ORIGIN OF SPECIES. 4. Cont. Species: . PROCESS OF SPECIATION. REPRODUCTIVE ISOLATION. HORSE. DONKEY. MULE. A "Liger”, a Lion/Tiger hybrid. A "Zeedonk", a zebra/donkey hybrid (does not occur in the wild). (Ligers exist only in captivity) .

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CHAPTER 14

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  1. CHAPTER 14 THE ORIGIN OF SPECIES

  2. 4. Cont. Species:

  3. PROCESSOF SPECIATION REPRODUCTIVE ISOLATION

  4. HORSE DONKEY MULE

  5. A "Liger”, a Lion/Tiger hybrid A "Zeedonk", a zebra/donkey hybrid (does not occur in the wild) (Ligers exist only in captivity) Fertile Canid hybrids occur between coyotes, wolves, dingoes, jackals and domestic dogs.

  6. a. Cont. Origin of species:

  7. 6. Tempo of Speciation: • Punctuated equilibrium model: Abrupt periods of • speciation and long periods of little change. b. Gradualism model: Big changes (speciation) occur By the steady accumulation of many small changes.

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