Contact: Deborah Smith
University of New South Wales
Caption: Some bottlenose dolphins in Shark Bay in Western Australia put sponges on their rostrums to use as tools to forage. A study of the dolphins has shown social behavior can shape the genetic makeup of this wild animal population.
Credit: Image: Simon Allen
Usage Restrictions: In association with a report on the research
Related news release: Cultural hitchhiking: How social behavior can affect genetic makeup in dolphins