What anatomical action causes the Cape Cobra to create its distinctive, broad, and rounded hood?
Answer
Flattening the ribs behind its head.
The iconic defensive hood display of the Cape Cobra is initiated by a specific physiological action involving the skeletal structure immediately behind the head. When the snake perceives a threat, it flattens the ribs in this region, causing the skin to stretch tautly over the broadened structure. This action transforms the neck into a wide, rounded, and intimidating visual barrier meant to deter potential predators or threats. This mechanism is purely voluntary and is deployed as a primary warning before any physical strike is attempted.
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