All the human reaces like Africans, Asians, Europeans, Americans and otgher might have evolved from a common ancestor. Provide a few evidences in support of this view.

Explanation

**Step-by-Step Text Solution:**

1. **Introduction to Common Ancestry**:
- All human races, including Africans, Asians, Europeans, and Americans, may have evolved from a common ancestor. This concept is supported by various pieces of evidence.

2. **Common Physical Characteristics**:
- Despite the apparent differences among human races, there are numerous common physical traits shared by all. For example:
- **Brain Size**: All human races have a similar brain size, which is crucial for cognitive functions.
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