What types of skin glands are there about a mammal?

1) Sweat – participate in thermoregulation (perform an excretory function)
2) Sebaceous – perform a protective function (lubricate hair and skin, giving them elasticity.
3) Smells – perform a signal function (they help to attract sexual partners, mark territory, defend against enemies.)
4) Milky – form and produce milk for feeding offspring
5) Cerumial (ear) glands form and secrete earwax (cleaning, lubricating and protecting the external auditory canal)

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