Explain why, a cow can digest grass but we cannot.

Explanation

### Step-by-Step Solution:

1. **Understanding the Composition of Grass**:
- Grass is primarily made up of cellulose, which is a complex carbohydrate found in plant cell walls.

2. **Identifying Ruminants**:
- Cows are classified as ruminants, which are a specific group of mammals that have a unique digestive system adapted to breaking down plant material.

...