https://www.youtube.com/watch?v=2 FRo2OiMwc
3-D model of the sounds made by forest elephants excited about a mating event in the Dzanga forest clearing, Central African Republic. Lowest frequencies are to the left. The height of the peaks indicates how much energy in in that frequency.
Infrasound
In a class aptly dubbed "Toys for Elephants," MassArt students create handmade, educational toys for Buttonwood Park Zoo's two elephants, Emily and Ruth.