The call of the fin whale (bottom) is a short, pulsive call typically centered at about 20 Hertz. The streamlined shape (top) of the fin whale allows it to swim at speeds greater than 20 mph. Image courtesy of Submarine Ring of Fire 2002, NOAA/OER.
The call of the fin whale (bottom) is a short, pulsive call typically centered at about 20 Hertz. The streamlined shape (top) of the fin whale allows it to swim at speeds greater than 20 mph. Image courtesy of Submarine Ring of Fire 2002, NOAA/OER.