Which of the following is not true ?

Options

A. About 15 mya, primates Oryopithecus and Ramapithecus existed.
B. Ramapithecus was more ape-like .
C. Homo erectus had a large brain around `900 cm^(3)`
D. The brain capacities of Homo habilis were between `650 cm^(3) and 800 cm^(3)`.

Answer

To solve the question "Which of the following is not true?", we need to analyze the statements provided and identify the one that is incorrect.

### Step-by-Step Solution:

1. **Evaluate the First Statement**:
- The statement claims that "about 15 million years ago, primates Aureopithecus and Ramapithecus existed."
- This statement is true. Both Aureopithecus and Ramapithecus are known to have existed around that time.

2. **Evaluate the Second Statement**:
- The statement claims that "Ramapithecus was more ape-like."
- This statement is false. Ramapithecus is considered to be more human-like (more closely related to humans) than ape-like.

3. **Evaluate the Third Statement**:
- The statement claims that "Homo erectus had a large brain around 900 cubic centimeters."
- This statement is true. Homo erectus is known to have had a brain size of approximately 900 cubic centimeters.

4. **Evaluate the Fourth Statement**:
- The statement claims that "the brain capacity of Homo habilis was between 650 cubic centimeters and 800 cubic centimeters."
- This statement is also true. Homo habilis is indeed known to have a brain size within that range.

5. **Conclusion**:
- After evaluating all the statements, the one that is not true is the second statement: "Ramapithecus was more ape-like."

### Final Answer:
The statement that is not true is: **"Ramapithecus was more ape-like."**

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