A Frog's Creative Broadcasting Solution
If you live in a large city, especially one that is surrounded by other large cities, you know that the radio dial can become very crowded. To prevent the radio dial from turning into incomprehensible gibberish, radio stations are assigned a frequency on which to operate.
This orderly arrangement is also found among many animals. Male birds will often stake out a territory so that their mating call does not interfere with other males of their kind. Frogs too, have mating calls, but often many species of frogs are found in the same swamp. They avoid interfering with each other by each using a unique frequency for their calls. Otherwise, no one's call could be clearly understood. This orderly arrangement is evidence enough of the Creator's hand.
But there are two South American frogs, often found in the same locations, which use the same frequency. How can they do that? One frog calls only above water while the other frog uses his call only under water. Since the surface of the water is an effective barrier for sound, neither call interferes with the other.
Frogs could have never gotten together and agreed on limiting themselves to unique frequencies. What should be clear, especially in our technological age, is that the Creator Himself set up this arrangement for the good of everyone.