Concept illustration
![](https://mb.cision.com/Public/206/2371078/98ec3bc905d5ed4f_800x800ar.jpg)
Photographer: Artin Arshamian
Wolves and blood-sucking flies were attracted to the scent molecule E2D, whereas mice and humans tried to avoid it. Illustration by Artin ArshamianPhotographer: Artin Arshamian
Wolves and blood-sucking flies were attracted to the scent molecule E2D, whereas mice and humans tried to avoid it. Illustration by Artin ArshamianKAROLINSKA INSTITUTET PRESS OFFICE Opening hours: Monday–Friday 09.00–17.00 CET. Karolinska Institutet – a medical university ki.se