Name four groups of Eutherians?

Explanation

**Step-by-Step Solution:**

1. **Understanding Eutherians**: Eutherians, also known as placental mammals, are characterized by their well-developed placenta, which allows for a longer gestation period and more advanced development of the young before birth.

2. **Identifying Groups**: Eutherians can be classified into various groups based on their dietary habits and physical characteristics. Here, we will identify four distinct groups.

3. **Group 1 - Insectivorous Mammals**: This group includes mammals that primarily feed on insects. Examples include armadillos and anteaters, which are specialized for consuming ants and other insects.

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