How ancient seafarers and their dogs helped a humble louse conquer the world
- Written by Loukas Koungoulos, PhD Candidate, University of Sydney

This is the story of how a parasitic, skin-chewing insect came to conquer the world.
For more than a century, scientists have been puzzled as to how an obscure louse native to Australia came to be found on dogs across the world. Heterodoxus...