Question:

The largest living flightless bird is

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It comes from Africa, runs at about 70 km per hour and lays the biggest egg of any living bird.
Updated On: Jul 17, 2026
  • Emu
  • Kiwi
  • Ostrich
  • Penguin
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The Correct Option is C

Solution and Explanation

Step 1: Understanding the Question:
All four birds listed are flightless. The question asks which of them is the largest living bird, that is, the tallest and heaviest species alive today.

Step 2: Key Formula or Approach:
Compare the typical height and weight of each bird and pick the biggest. "Living" rules out extinct giants such as the moa and the elephant bird.

Step 3: Detailed Explanation:
The ostrich, found in Africa, stands about 2.1 to 2.7 metres tall and weighs around 100 to 150 kg. It is the largest and heaviest living bird, it lays the largest egg of any living bird, and it is also the fastest running bird, reaching about 70 km per hour.
Why the other options fail:
The emu of Australia is the second largest living bird at about 1.6 to 1.9 metres and 30 to 55 kg, so it is clearly smaller than the ostrich.
The kiwi of New Zealand is about the size of a chicken, roughly 2 to 3 kg, so it is one of the smallest flightless birds.
Penguins are flightless swimmers, and even the largest of them, the emperor penguin, reaches only about 1.2 metres and 40 kg.

Step 4: Final Answer:
The largest living flightless bird is the ostrich, option (C).
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