Do you hear what I hear? Well that depends; are a human, a bat or a moth. In comparison, humans really suck as hearing.In our 30th episode, we finish up our five week journey into the five senses with hearing! And the two animals with the best hearing have been in competition with each other over who has the best hearing for the last 50 million years. The bats and moths! Bats need to eat and the most want to live another day! Who will win this great battle? Will we be around to watch it's end...