Genetics
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ChemistryDNA, RNA…and XNA?
Scientists create artificial genetic molecules that can carry information, evolve.
By Roberta Kwok -
GeneticsSniffing out truffle scent
Genetics, not geography, plays key role in the aroma of the delicacy.
By Roberta Kwok -
AnimalsCosts of missing sleep
Some fruit flies do fine without sleep, as long as they’ve got enough to eat.
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AnimalsAfraid of its own fishy reflection
A cichlid brain works differently when the fish attacks its mirror image.
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GeneticsYour inner Neandertal
New study finds some DNA in modern humans was passed down from Neandertals.
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AnimalsThe nerve of one animal
Cancer that's killing Tasmanian devils probably began in a single creature's nervous system.
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GeneticsTwo monkeys see a more colorful world
A genetic experiment changes the way monkeys see the world.
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AnimalsChicken eggs as drug factories
Researchers have created chickens that produce useful drugs in their eggs.
By Emily Sohn