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City Mice Smarter Than Country Mice

Study finds that human activity has made some animals evolve larger brains

(Newser) - City dwellers have evolved bigger brains than their rural counterparts, a new study suggests—at least among white-footed mice and meadow voles. University of Minnesota biologist Emilie Snell-Rood looked at the skulls of 10 species of small mammals, and found that in those two species, specimens from urban environments had... More »

Rodent Attacks Demolish Spanish Crops

As 750M voles enjoy the all-day buffet, farmers resort to their wits

(Newser) - As many as 750 million voles have descended on farmland in central Spain, and with government response slow, farmers are taking matters into their own hands. The reason the number of rodents has exploded over the past few months is unclear, the Christian Science Monitor reports, but a likely explanation... More »

2 Stories