“There’s a tree in the meadow with a stream drifting by.” Some of you may remember that song from the 1940s. It’s old, but the message is still good. The tree stands for constancy, the stream for the passage of time. It’s important to many of us to see that same tree over and over. We may even take it for granted, but when it’s cut down or blown down, we grieve its passing.
In many respects, sound and hearing in nature are just as important as sight. In those species that are more nocturnal than diurnal, sounds and the ability to hear, and differentiate, them is crucial to their survival. Whether an animal species is active in the day or at night, there’s a greater than 50 percent chance that it perceives sound waves or senses vibrations, another form of sound.