Which of the following is not true about human evolution ?

Options

A. About 15 mya , primates called Dryopithecus and Ramapithecus were existing
B. The first human - like being the hominid was called Homo habilis with brain capacity between 650 - 800cc.
C. During ice age between 75,000 - 10,000 years ago the modern Homo sapiens arose.
D. Pre - historic cave art were developed by ancestors of modern man around 10,000 years ago.

Answer

To determine which statement is not true about human evolution, we will analyze each option provided in the question step by step.

### Step-by-Step Solution:

1. **Evaluate the First Statement**:
- The statement mentions that primates called Dryopithecus existed about 15 million years ago.
- **Analysis**: This statement is correct. Dryopithecus is indeed a genus of primates that lived during the Miocene epoch, approximately 20 to 25 million years ago. Fossils have been found in places like Bilaspur, Himachal Pradesh.

2. **Evaluate the Second Statement**:
- The statement refers to Homo habilis as the first human being with a cranial capacity of 650 to 800 cubic centimeters.
- **Analysis**: This statement is also correct. Homo habilis is recognized as one of the earliest members of the genus Homo and had a cranial capacity within that range, making it an early true human.

3. **Evaluate the Third Statement**:
- The statement claims that during the Ice Age, Homo sapiens evolved from their ancestors around 75,000 to 10,000 years ago.
- **Analysis**: This statement is incorrect. Homo sapiens did not evolve from Homo erectus or other ancestors during this time frame. Instead, Homo sapiens are believed to have emerged much earlier, with evidence suggesting their existence around 300,000 years ago. The time frame mentioned is misleading as it conflates the timeline of human evolution.

4. **Conclusion**:
- Based on the evaluations, the statement that is not true about human evolution is the third statement regarding the evolution of Homo sapiens during the Ice Age.

### Final Answer:
The statement that is not true about human evolution is the third statement.

---