A hidden developmental programme allows worker ants to repeatedly regain simple eyes that were lost during evolution, revealing how dormant genetic networks can fuel evolutionary innovation.
A new MRI technique can detect abnormalities in brain cells in people with Huntington's disease, offering a promising non-invasive way to monitor disease progression and assess whether new treatments are protecting the brain.
New bacterial regulatory interactions can evolve more readily than previously appreciated, providing new insights into the evolution of gene regulation.