#維持體內平衡
#保護免受溫度危害
#Maintain homeostasis
#Protect from temperature
舌頭的血管網預冷血液 (Lingual rete precools blood)
藉由對流熱交換方式，灰鯨的舌血管網可預先冷卻舌頭血液以避免熱散失
(Lingual retes of gray whales precool blood in the tongue to avoid heat loss via counter-current heat exchange.)
