Male mice that become dads lose violent tendencies
Wednesday, March 20, 2013 - 17:01
in Biology & Nature
By Tanya LewisLiveScience Male mice are not natural-born fathers. Males that have never mated respond with aggression to chemical signals from newborn mice pups, whereas those that have fathered pups are more nurturing, a new study finds.In addition to their normal sense of smell, mice and some other animals have a sensory system in their brain, known as a vomeronasal organ, that responds to chemi...