Embryos of birds are found to develop tooth buds. What do we infer from this?

Explanation

### Step-by-Step Solution:

1. **Understanding the Observation**: The question states that embryos of birds develop tooth buds. This is an important observation as it relates to the evolutionary biology of birds.

2. **Analyzing the Development of Tooth Buds**: Tooth buds are structures that indicate the potential for teeth to develop. In modern birds, teeth are absent, but the presence of tooth buds during embryonic development suggests a historical trait.

3. **Connecting to Evolutionary History**: The presence of tooth buds in bird embryos indicates that birds share a common ancestry with reptiles, which are known to have teeth. This suggests that birds may have evolved from reptile-like ancestors.

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