Adaptations for Aquatic and Aerial Movement · NCERT Biology

The 'furcula' (wishbone) in birds is an adaptation that:

  1. Shields and protects the underlying heart
  2. Acts as a spring to help in wing recovery
  3. Aids in grinding food during digestion
  4. Connects the skull directly to the vertebral spine
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Correct answer: Acts as a spring to help in wing recovery

The furcula is formed by the fusion of the clavicles. It acts like a spring, storing energy during the downstroke and releasing it to help pull the wings back up during the upstroke.

Difficulty: Medium Question 13 of 40

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