Lice

Mummies With Lice Offer New Clues to Human Migration

Publication: National Geographic News   Date: February 8, 2008   View Article

A common type of head lice picked from thousand-year-old Peruvian mummies suggests the pesky parasitic insects accompanied modern humans on their first migration out of Africa, according to a new study.

Researchers had thought Europeans brought the widespread louse species to the Americas about 500 years ago, said David Reed, who studies the parasites at the University of Florida’s Museum of Natural History in Gainesville.

Sea Lice From Fish Farms May Wipe Out Wild Salmon

Publication: National Geographic News   Date: December 13, 2007   View Article

Four years from now wild pink salmon may vanish from Canada’s Broughton Archipelago, a new study warns.

The killers, according to the research, are sea lice from fish farms.

Lice From Fish Farms Killing Wild Salmon

Publication: National Geographic News   Date: October 2, 2006   View Article

Clouds of sea lice billowing from fish farms infect and kill up to 95 percent of the wild juvenile salmon that swim past the farms on the way out to sea, according to a new study.

The finding is further evidence that aquaculture—the practice of raising fish in underwater cages or nets or in tanks—is dangerous to wild fish populations, according to the researchers.

© 2008-2010 Collected Writings By John Roach