What covers the smooth skin of the Yellow Bullhead instead of scales?
Answer
A tough, mucus-covered integument
Like other bullheads, the Yellow Bullhead lacks traditional scales found on many fish species. Instead, its body is protected by a tough integument, which is the biological term for the skin covering. This skin is further coated in a thick layer of mucus, which provides necessary protection against abrasions from substrate contact and environmental irritants, contributing to its resilience.
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