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All mammals share the trait of having hair on their body, from seals to bears.

For them, it can provide warmth, protection, camouflage, spread scent, help with self-defense and serve as a sensory gland.

Those are just a few of the fun facts about hair we learned from Rick Crosslin, MSD Wayne Township Scientist in Residences, today as he explained the science behind hair, which is also known as Trichology.

Interesting Hair Facts:

For more from Crosslin visit,