What type of defense mechanism do the spiky hairs on the caterpillar primarily employ?

Answer

Mechanical irritation.

The prominent spiky hairs, called setae, cause irritation upon direct, rough contact, indicating that the defense is physical rather than chemical or venomous.

What type of defense mechanism do the spiky hairs on the caterpillar primarily employ?

#Videos

Huge caterpillar will it sting. The Imperial Moth . - YouTube

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