A prehensile tail occurs in

Options

A. Cebus
B. Macaca
C. Nyctecebus
D. Loris .

Answer

**Step-by-Step Solution:**

1. **Understand the Term "Prehensile Tail":**
A prehensile tail is a type of tail that is capable of grasping or holding objects. This adaptation is particularly useful for animals that live in trees (arboreal creatures) as it helps them in climbing, balancing, and manipulating objects.

2. **Analyze the Options:**
- **Cebus (Capuchin monkeys):** These are New World monkeys known for their intelligence and dexterity. They possess a prehensile tail that they use to grasp branches and manipulate objects.
- **Macaca (Old World monkeys):** This genus includes species like macaques, which do not have prehensile tails. Instead, they have tails that are not adapted for grasping.
- **Nictisibus (Loris):** This genus includes nocturnal primates known as lorises, which also do not have prehensile tails.
- **Loris:** Similar to Nictisibus, lorises are nocturnal and do not have prehensile tails.

3. **Identify the Correct Answer:**
Based on the analysis, the only option that correctly represents an animal with a prehensile tail is **Cebus (Capuchin monkeys)**. Therefore, the correct answer is option A.

4. **Conclusion:**
A prehensile tail occurs in Cebus (Capuchin monkeys).

---