Identify the stages in human evolution.
Erect ape man _______

Explanation

**Step-by-Step Solution:**

1. **Understanding Human Evolution**: Human evolution refers to the gradual development of the human species over millions of years from our primate ancestors.

2. **Identifying Key Stages**: The evolution of humans can be divided into several key stages. One of the significant stages is represented by the species known as Homo erectus.

3. **Homo erectus**: This species is often referred to as the "erect ape man." It lived approximately 1.5 million years ago and is known for its upright walking posture.

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