Human vs. Animal Hair
• Medulla pattern• Medullary Index• Width of hair• Scale pattern
Human Hairs
Medullary Index—Human vs. Animal
Horse Hair
Dog Hair
Mouse Hair
Deer Hair
Cow Hair
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Pig Hair
Scale Patterns Human vs. Scale Patterns Human vs. AnimalAnimal
Variation of Human Hair
• From one hair to another on the same persons head
• From one area of the body to another• Medulla pattern• Color• Cut vs. Yanked vs. Naturally fallen out
Fallen Out Hairs
Pulled Out-By the Root
Natural Tip
Broken-Torn
Cut Hair
Medulla Patterns in Humans•Can vary from one hair to another on the same person•Also varies from person to person.
Continuous
Interrupted
Fragmented
Body hairs look different than hairs from a person’s head
For example, Beard hair sometimes has a double medulla
