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Science News for October 6, 2013


What evolved first -- a dexterous hand or an agile foot?

Researchers used brain imaging and fossil evidence to confirm earlier studies on somatotopic maps in humans and monkeys. Early hominids evolved dexterous fingers when still quadrupeds, while bipedal locomotion led to a separate adaptation of the big toe for balance control.

SourceRIKEN·JournalPhilosophical Transactions of the Royal Society of London (B )·DateOct 6, 2013

Identical twins with significant weight differences shed light on the phenomenon of metabolically healthy obesity

A study of identical twins with significant weight differences found that in half of the pairs, the obese twin had a poorer blood fat profile and increased risk of diabetes. In contrast, the other half showed no difference in metabolic health between the two twins, shedding light on the 'metabolically healthy obesity' phenomenon.

SourceDiabetologia·JournalDiabetologia·DateOct 6, 2013

Bt sweet corn can reduce insecticide use

A new study suggests that genetically modified Bt sweet corn can reduce the need for traditional insecticides, resulting in increased marketability and profitability for farmers. The research found that Bt sweet corn outperformed non-Bt varieties in controlling pest infestations, even with conventional insecticide applications.

SourceEntomological Society of America·JournalJournal of Economic Entomology·DateOct 6, 2013