UPSC Prelims 2023 · Question 24 of 97

UPSC Prelims 2023 question on Nocturnal Fauna

Consider the following fauna:

1. Lion-tailed Macaque
2. Malabar Civet
3. Sambar Deer

How many of the above are generally nocturnal or most active after sunset?

  1. Only one
  2. Only two
  3. All three
  4. None
Show answer

Answer: B. Only two

Analysis

Only options 2 and 3 are nocturnal/most active after sunset → Option (b) Only two.

Statement by statement

Statement 1 – INCORRECT: The lion-tailed macaque is a rainforest dweller, often found in the upper canopy of tropical moist evergreen forests or monsoon forests. It is diurnal, meaning it is active exclusively in daylight hours.

Statement 2 – CORRECT: The Malabar civet is considered nocturnal and so elusive that little is known about its biology and ecology apart from habitat use.

Statement 3 – CORRECT: Sambar deer are either crepuscular (active at dusk and dawn) or nocturnal (active during the night) animals.

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