How does the aardvark protect its sensitive nasal passages while actively digging or feeding underground?
Answer
They can close their nostrils tightly to prevent dust and insects from entering the nasal passages.
The aardvark has evolved a specific physical adaptation directly related to its subterranean feeding environment. When engaged in the intensive activity of digging or consuming insects within the confined spaces of a nest, they possess the physiological capability to close their nostrils completely and tightly. This action serves the vital purpose of preventing fine dust particles, soil debris, and the insects themselves from entering the nasal passages. This adaptation underscores the species' absolute reliance on subterranean insects and protects their highly sensitive olfactory equipment.
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