Snail genetic tracks reveal ancient human migration

Some snails in Ireland and the Pyrenees are genetically almost identical, perhaps because they were carried across the Atlantic during an 8000-year-old human migration. The snail genetics tie in with studies of human genetics ...

Satellite tagging maps the secret migration of white sharks

Long-life batteries and satellite tagging have been used to fill in the blanks of female white sharks' (Carcharodon carcharias) lifestyles. Research published in the launch edition of BioMed Central's open access journal ...

American workers find less incentive to relocate

American workers—long unusually mobile—are increasingly staying put. There are a range of popular explanations for the slowdown in migration between states, including an aging population that is firmly entrenched and ...

Ducks flock to Extremadura thanks to its ricefields

Four new reservoirs linked to rice cultivation built in the middle basin of the Guadiana river in the middle of the 1990's have allowed various migratory dabbling duck species to significantly increase in number during the ...

Study: Residential segregation still a problem in US

Despite increasing numbers of multiethnic neighborhoods in the United States, relatively few black or white families are actually moving into these types of communities, according to a new study in the June issue of the American ...

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