Perching puffins

Good communication is important in relationships: Just ask these seabirds who are known to mate for life, often a span of two or three decades. While the call of the Atlantic puffin isn't the most romantic sound (think something between a hearty laugh and an armpit noise), that's just one way these highly social birds share their feelings. Males perform mating dances for females, and mating pairs often trade low grunts and chirps, sometimes rubbing their bills together affectionately.