๐Ÿ“˜ Q.5 IAS Prelims 2023 โ€” Environment & Ecology (Waggle Dance Communication)๐Ÿงท Authentic Classroom Explanation by IAS Monk


๐Ÿ“Œ The Question

Which of the following organisms perform waggle dance for others of their kin to indicate the direction and the distance to a source of their food?

(a) Butterflies
(b) Dragonflies
(c) Honeybees
(d) Wasps


โœ… Correct Answer: (c) Honeybees


๐Ÿง‘โ€๐Ÿซ Classroom Explanation

The waggle dance is a sophisticated symbolic communication system used exclusively by worker honeybees to inform other members of the hive about:

  • Direction of food source
  • Distance of food source

๐Ÿ”ฌ This behaviour was decoded by Karl von Frisch, for which he later received the Nobel Prize.

How the waggle dance works:

  • ๐Ÿงญ Direction:
    • Vertical upward movement โ†’ food source is towards the Sun
    • Angle of waggle relative to vertical โ†’ angle relative to Sunโ€™s position
  • ๐Ÿ“ Distance:
    • Duration of the waggle phase indicates how far the food source is

No other listed insects possess such a precise, encoded spatial language.


โšก Curiosity Raiser

Honeybees can communicate kilometre-level distances without maps, GPS, or sound.
What does that say about collective intelligence in nature?


๐Ÿ“š Enrich Notes (UPSC Edge)

  • Waggle dance is an example of ethology (study of animal behaviour)
  • It is:
    • Species-specific
    • Learned + instinctive
  • Frequently asked in UPSC under:
    • Animal behaviour
    • Ecology communication
    • Nobel-linked discoveries

๐Ÿšซ Butterflies, dragonflies, and wasps do not perform waggle dances.


๐Ÿ•Š๏ธ IAS Monk Whisper

โ€œNature speaks fluently โ€” only the attentive learner understands the language.โ€

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