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Figure 24.0 A Galápagos Islands tortoise
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Figure 24.1 Two patterns of speciation
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Figure 24.2a The biological species concept is based on interfertility rather than physical similarity
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Figure 24.2b The biological species concept is based on interfertility rather than physical similarity
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Figure 24.3 Courtship ritual as a behavioral barrier between species
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Figure 24.5 A summary of reproductive barriers between closely related species
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Figure 24.6 Two modes of speciation
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Figure 24.7 Allopatric speciation of squirrels in the Grand Canyon
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Figure 24.8 Has speciation occurred during geographic isolation?
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Figure 24.9 Ensatina eschscholtzii, a ring species
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Figure 24.10 Long-distance dispersal
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Figure 24.11 A model for adaptive radiation on island chains
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Figure 24.12 Evolution of reproductive isolation in lab populations of Drosophila
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Figure 24.13 Sympatric speciation by autopolyploidy in plants
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Figure 24.14a Botanist Hugo de Vries
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Figure 24.14b The new primrose species of botanist Hugo de Vries
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Figure 24.15 One mechanism for allopolyploid speciation in plants
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Figure 24.16 Mate choice in two species of Lake Victoria cichlids
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Figure 24.17 Two models for the tempo of speciation
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Figure 24.18 A range of eye complexity among mollusks
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Figure 24.19 Allometric growth
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Figure 24.20 Heterochrony and the evolution of salamander feet among closely related species
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Figure 24.21 Paedomorphosis
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Figure 24.22 Hox genes and the evolution of tetrapod limbs
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Figure 24.23 Hox mutations and the origin of vertebrates
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Figure 24.24 The branched evolution of horses
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