Some animals like fiddler crab, busiest during the time of either dawn or dusk or both are called

Correct answer: C. Crepuscular animals

  • A. Diurnal animals
  • B. Nocturnal animals
  • C. Crepuscular animals
  • D. Circadian animals

Explanation

In zoology, a crepuscular animal is one that is active primarily during the twilight period, being matutinal, vespertine/vespertinal, or both. This is distinguished from diurnal and nocturnal behavior, where an animal is active during the hours of daylight and of darkness, respectively.

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