They help fish swim, but fins also advertise a fish’s social standing and health. In a new study, researchers report that for the male bluefin killifish (Lucania goodei), each colorful fin presents its own messages to other fish.
A new study offers fresh insights into how talking on a cell phone or to a passenger while driving affects one’s performance behind the wheel. The study used a driving simulator and videophone to assess how a driver’s conversation partner influences safety on the road.
University of Illinois entomologist May Berenbaum is the recipient of the National Medal of Science, the nation's highest honor for achievement and leadership in advancing the fields of science and technology.
The big-headed ant (Pheidole megacephala) is considered one of the world’s worst invasive ant species. As the name implies, its colonies include soldier ants with disproportionately large heads. Their giant, muscle-bound noggins power their biting parts, the mandibles, which they use to attack other ants and cut up prey.
In a new study, researchers report that big-headed ant colonies produce larger soldiers when they encounter other ants that know how to fight back.
Researchers report that some stickleback fish fathers can have long-term effects on the behavior of their offspring: The most attentive fish dads cause their offspring to behave in a way that makes them less susceptible to predators. These behavioral changes are accompanied by changes in gene expression, the researchers report.
Kinesiology and community health professor Charles Hillman and his colleagues found that children who engaged in an after-school physical activity program performed better on several measures of cognitive function at the end of the intervention.