A male white-browed sparrow-weaver in the Kalahari savannah takes a break from feeding its chicks. This song bird species defends its territory with complex duet songs, sung by the dominant pair. With miniature transmitters, their interactive singing behavior can be studied in the wild: both acoustically and neuronal!
Targeted activation of specific nerve cells using pulses of light alleviates motor impairments in an animal model of Huntington’s disease and restores healthy neuronal activity.