Eyes of mammals and octopus are an example of:

Options

A. Convergent evolution
B. Divergent evolution
C. Adaptive radiation
D. None of these

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the relationship between the eyes of mammals and octopuses. We need to determine what type of evolutionary process explains their similarities despite their different origins.

2. **Identifying the Similarities**: Both mammalian and octopus eyes serve the same function: vision. This functional similarity is important for understanding the type of evolution involved.

3. **Examining the Origins**: Mammals are vertebrates, while octopuses are invertebrates. This indicates that they have different evolutionary ancestors, which is crucial for identifying the type of evolution.

4. **Defining Convergent Evolution**: Convergent evolution occurs when different species develop similar traits or functions independently, often due to similar environmental pressures or adaptations, despite having different evolutionary origins.

5. **Conclusion**: Since the eyes of mammals and octopuses are functionally similar but have different evolutionary backgrounds, they are an example of convergent evolution.

**Final Answer**: The eyes of mammals and octopus are an example of convergent evolution.

---