How do mammal skin glands help with communication and temperature control?

Mammalian skin glands play essential roles in thermoregulation and social interaction.

Temperature Control

Mammals regulate body temperature through specialized secretory glands. Eccrine sweat glands are highly effective in humans and some primates; they secrete water onto the skin surface, where heat is removed via evaporation. In other large mammals, such as horses and cattle, apocrine glands serve a similar thermoregulatory function. Animals lacking widespread sweat glands, such as dogs and cats, often rely on panting for cooling, as their sweat glands are restricted to areas like paw pads.12

Communication

Skin glands are vital for chemical communication, producing odors used for social and sexual signaling. Many species possess specialized glandular aggregations—such as chin, anal, or side glands—to mark territories or advertise reproductive status. For instance, artiodactyls use various scent glands, including preorbital and pedal glands, to mark objects or leave danger signals. These chemical cues allow mammals to convey complex information, such as sexual receptivity or territorial boundaries, to other members of their species.234