The more abundant animals in a desert grassland are

Options

A. arboreal
B. dirunal
C. aquatic
D. fossorial

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the most abundant animals found in desert grasslands. We need to identify the type of animals that thrive in this specific ecosystem.

2. **Evaluating the Options**:
- **Option 1: Arboreal**: Arboreal animals are those that live in trees. Since desert grasslands have very few trees, this option is not applicable.
- **Option 2: Diurnal**: Diurnal animals are active during the day. While some animals in desert grasslands may be diurnal, this term describes their activity pattern rather than their abundance in the habitat.
- **Option 3: Aquatic**: Aquatic animals live in water. Desert grasslands typically lack sufficient water bodies, making this option incorrect.
- **Option 4: Fossorial**: Fossorial animals are those that dig or burrow into the ground. Many animals in desert grasslands, such as certain rodents and reptiles, are fossorial, allowing them to escape the harsh conditions of the desert.

3. **Conclusion**: Based on the evaluation of the options, the most abundant animals in desert grasslands are **fossorial animals**. They have adaptations that allow them to thrive in arid environments.

**Final Answer**: The more abundant animals in a desert grassland are fossorial animals.

---