View larger image | Diversity bonus: Despite receiving an identical input (black line at top of chart on left), three different smell-related neurons show different responses (activity in color). One research team has found that cell populations with such heterogeneous responses can carry twice as much information as a homogeneous group of the same size (right). Source: K. Padmanabhan & N. Urban/Nature Neuroscience 2010 Credit: Adapted by Janel Kiley