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