Sunday, August 2, 2026
Science

Parasitic fly 'sacrifices sight' after finding host, study shows

Deer keds—biting flies found across Europe, Asia, Africa and the Americas—use their eyes and flight to locate a host, typically deer, but occasionally humans or other mammals. Once they land, however, they shed their wings permanently and spend the rest of their lives crawling through fur and feedin...

Parasitic fly 'sacrifices sight' after finding host, study shows
Image: Phys.org
Deer keds—biting flies found across Europe, Asia, Africa and the Americas—use their eyes and flight to locate a host, typically deer, but occasionally humans or other mammals. Once they land, however, they shed their wings permanently and spend the rest of their lives crawling through fur and feeding on blood.

Originally published at Phys.org

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