# Name the animal who sleep by one eye open _____ ? with Answer - General Knowledge MCQs | TestPrep

> Solved MCQ: Name the animal who sleep by one eye open _____ ? Correct Answer: D. Dolphin. Verified answer explanation for FPSC, PPSC, MDCAT, NTS, and CSS competitive exam preparation.

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# Name the animal who sleep by one eye open _____ ?

Direct Answer & Quick Reference

The correct option is **D. Dolphin**.

Dolphins are marine mammals known for their intelligence and social behavior. They possess the ability to sleep with one eye open, allowing them to remain vigilant to potential thr...

A. Starfish

B. Shark

C. Elephent

D. Dolphin **(Correct Answer)**

✨ Explain with AI

Verified Key: D. Dolphin
Solved by 5,559+ students

**Detailed Explanation & Reference:**

Dolphins are marine mammals known for their intelligence and social behavior. They possess the ability to sleep with one eye open, allowing them to remain vigilant to potential threats even while resting.

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