📘 Q.5 IAS Prelims 2023 — Environment & Ecology (Waggle Dance Communication)🧷 Authentic Classroom Explanation by IAS Monk
📌 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
✅ Correct Answer: (c) Honeybees
🧑🏫 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
🔬 This behaviour was decoded by Karl von Frisch, for which he later received the Nobel Prize.
How the waggle dance works:
- 🧭 Direction:
- Vertical upward movement → food source is towards the Sun
- Angle of waggle relative to vertical → angle relative to Sun’s position
- 📏 Distance:
- Duration of the waggle phase indicates how far the food source is
No other listed insects possess such a precise, encoded spatial language.
⚡ Curiosity Raiser
Honeybees can communicate kilometre-level distances without maps, GPS, or sound.
What does that say about collective intelligence in nature?
📚 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
🚫 Butterflies, dragonflies, and wasps do not perform waggle dances.
🕊️ IAS Monk Whisper
“Nature speaks fluently — only the attentive learner understands the language.”
