Japanese firefly Male fireflies adjust their courtship flashing signals based on the level of surrounding ambient light to ensure females will notice them. (Photo credit: yb_woodstock, Wikimedia, CC BY 2.0) Leave a Reply Cancel reply This site uses Akismet to reduce spam. Learn how your comment data is processed. Search Search for... Search Subscribe to Entomology Today! Enter your email address to subscribe to Entomology Today. You'll receive notifications of new posts by email. Email Address Get Certified!