Friday is National Amber Alert Day. Law enforcement officials across the nation are recognizing the importance of the Amber Alert System, which is a high-speed, high-tech way of alerting the public when a child has been abducted. According to the Missouri State Highway Patrol, there’s been some misunderstanding about the criteria that must be met before the alert can go out.
New research out of the University of Missouri shows that when it comes to female mate preference in a certain species of tree frog, there may be more than meets the eye. Females may actually prefer the calls of males that share the same number of chromosomes.