Largest and heaviest mammal of the world is

Options

A. Elephant
B. Tiger
C. Lion
D. Blue whale

Answer

**Step-by-Step Solution:**

1. **Identify the Mammals Listed**: The question provides four options: elephant, tiger, lion, and blue whale. We need to identify which of these is the largest and heaviest mammal.

2. **Understand the Characteristics of Mammals**: All the listed animals are mammals, which are warm-blooded vertebrates that usually give birth to live young and have hair or fur on their bodies. They also possess mammary glands for nursing their young.

3. **Research the Size and Weight of Each Option**:
- **Elephant**: The African elephant is the largest land mammal, weighing up to 12,000 pounds.
- **Tiger**: The tiger is a large cat but is significantly smaller than both elephants and blue whales, weighing around 400 pounds.
- **Lion**: Similar to the tiger, lions weigh around 420 pounds.
- **Blue Whale**: The blue whale is the largest mammal and the largest animal known to have ever existed, weighing up to 400,000 pounds (approximately 200 tons).

4. **Compare the Weights**: From the information gathered:
- Elephant: ~12,000 pounds
- Tiger: ~400 pounds
- Lion: ~420 pounds
- Blue Whale: ~400,000 pounds

5. **Conclusion**: The blue whale is not only the largest but also the heaviest mammal in the world, far surpassing the weight of elephants, tigers, and lions.

6. **Final Answer**: The largest and heaviest mammal of the world is the **blue whale**.

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