His many images of unique caterpillars include wild variations like feathery blue spikes, curling burnt-orange horns, and long black whiskers. Siwanowicz also works as a neurobiologist at the Howard Hughes Medical Institute’s Janelia Farm Research Campus in Virginia.
![](/uploads/tumb/img/201802/igor-1_tumb_660.jpg)
![](/uploads/tumb/img/201802/igor-2_tumb_660.jpg)
![](/uploads/tumb/img/201802/igor-7_tumb_660.jpg)
![](/uploads/tumb/img/201802/igor-3_tumb_660.jpg)
Advertising
![](/uploads/tumb/img/201802/igor-6_tumb_660.jpg)
![](/uploads/tumb/img/201802/igor-4_tumb_660.jpg)
![](/uploads/tumb/img/201802/igor-8_tumb_660.jpg)
![](/uploads/tumb/img/201802/igor-5_tumb_660.jpg)
![](/uploads/tumb/img/201802/igor-9_tumb_660.jpg)