Closest primate relative of human being is

Options

A. Rhesus Monkey
B. Gorilla
C. Gibbon
D. Orang Utan.

Answer

To determine the closest primate relative of human beings from the given options, we can follow these steps:

1. **Identify the Options**: The options provided are rhesus monkey, gorilla, gibbon, and orangutan.

2. **Understand Common Ancestry**: All these primates share a common ancestor with humans. This means they all branched off from the evolutionary tree at different times.

3. **Determine Separation Times**:
- Rhesus monkey: Separated from the human lineage around 25 million years ago.
- Gibbon: Separated around 28 million years ago.
- Orangutan: Separated around 18 million years ago.
- Gorilla: Separated around 10 million years ago.

4. **Compare Separation Times**: The closer the separation time, the closer the relative.
- Gibbon (28 million years ago) - farthest
- Rhesus monkey (25 million years ago) - second farthest
- Orangutan (18 million years ago) - closer
- Gorilla (10 million years ago) - closest

5. **Conclusion**: Since the gorilla separated from the human lineage only 10 million years ago, it is the closest primate relative of human beings.

Thus, the answer is **gorilla**.

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