"Daily Singing: The Key to Attractive Male Songbirds"
A study led by researchers from the University of Southern Denmark reveals that male songbirds must sing daily to maintain their vocal muscles and produce attractive songs. The study found that these muscles weaken significantly within days if not used, losing 50% of their strength in a week without singing. Female zebra finches were able to discern the differences in the songs of birds before and after exercise, with 75% of them preferring the songs from well-exercised males. The findings could revolutionize human vocal training and speech therapy, as songbirds may provide insights into the physiology of vocal muscles.