| 41. | Many years of crossbreeding have proven that each successive generation of hybrids is better.
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| 42. | They can spend hundreds of dollars on new varieties, and dabble in crossbreeding and hybridizing.
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| 43. | The hope is that crossbreeding these animals will result in a creature that approximates the quagga.
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| 44. | Farmers, food processors and environmental groups alike say accidental crossbreeding in Brazil is virtually inevitable.
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| 45. | The genetic richness of " Testudo graeca " is also shown in their crossbreeding.
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| 46. | Similar to other longwool breeds, the Cotswold was often used for crossbreeding in early times.
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| 47. | Today's grapefruit is the result of the crossbreeding of a pomelo and a sweet orange.
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| 48. | After that crossbreeding, a population of steppe bison crossed the Bering Land Bridge to North America.
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| 49. | One type of sympatric speciation involves crossbreeding of two related species to produce a new hybrid species.
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| 50. | Due to crossbreeding between the different types, this distinction vanished, resulting in a single type.
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