The story of the Ensatina salamanders illustrates how new species can form over time through the process of geographic isolation and adaptive radiation. As these salamanders spread across different habitats in California, they became separated by physical barriers, such as mountains and valleys, leading to variations in their environments. These varied habitats necessitated adaptations for survival, resulting in distinct physical traits and behaviors among the populations. For example, some Ensatina salamanders developed specific colorations or body sizes suited to their local environments, which ultimately contributed to the emergence of new species as reproductive isolation occurred between the populations. This demonstrates how environmental factors and geographical separation can drive the evolution of biodiversity.
Step 5: (Write a CER or R.A.C.E.S) 3-5 Sentences. Click and Watch the following video (Youtube link / Google Drive Link) What does the story of the Ensatina salamanders teach us about how new species can form over time? Use evidence from what you've learned about their habitats, adaptations, and distribution to explain your answer. (4 points)
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