BODY & BRAIN
‘Normal’ B12 levels may not be enough for the brain. Read “B12 shortage linked to cognitive problems.”
A penguin can find its kin even in a sea of black and white. See “Penguins may sniff out relatives.”
ATOM & COSMOS
A NASA probe has found bizarre landforms on the planet nearest the sun. Read more in “Messenger from Mercury.”
HUMANSA teenager’s alcohol use is influenced by the friends of the teen’s boyfriend or girlfriend. See “Teen daters pal up to the bottle.”
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