9. Animal Hairs Coronal scale pattern is found in hairs of very fine diameter. Coronal scales are commonly found in the hairs of small rodents and bats
10. Animal Hairs Spinous or petal-like scales are triangular in shape and protrude from hair shaft. Found on hairs of seals, cats, and some other animals. They are never found in human hairs
11. Animal Hairs Imbricate or flattened-scale type consists of overlapping scales with narrow margins. Commonly found in human hairs and many animal hairs