Today is World Dolphin Day! To celebrate, we wanted to talk about some unique dolphin anatomy. All of the vocalizations that you hear coming from our resident dolphins come out of the blowhole on top of their heads Their blowhole is the only passageway of air into their lungs and they also have great muscle control over the sounds that they make! While all dolphin vocalizations may sound similar, all dolphins have their own signature whistle. Check them out! | The Institute for Marine Mammal Stu