The carotid rete is a network of blood vessels located at the base of the brain in some animal species, particularly in birds and mammals. This vascular structure acts as a heat exchange mechanism, helping to regulate the temperature of the brain by controlling blood flow. The carotid rete is important for thermoregulation in animals living in cold environments or during high levels of physical activity. Research on the carotid rete has focused on understanding its structure, function, and evolutionary significance in different animal species.