![Drosophila spp. that feed on cacti in the Sonoron desert. Source: https://steemit.com/stem-espanol/@hogarcosmico/barreras-reproductivas-mar-ecologico-o-habitat](https://blogs.biomedcentral.com/bugbitten/wp-content/uploads/sites/11/2022/02/imagen-9-280x200.jpg)
Being afraid of the dark may be useful
Hilary Hurd
A first line of defence against infection can take the form of avoidance behaviour. In the case of a species of fly that lives on desert cacti this… Read more »