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pregnant lady drinking wine

ALCOHOL EFFECTS Babies exposed to alcohol in utero can have lifelong learning and developmental problems. A new study in rats suggests one way alcohol might hurt a developing fetus, moving closer to a treatment.

Streptococcus gallolyticus

GROWTH SPUR  An intestinal bacterium called Streptococcus gallolyticus (white, growing in a petri dish) has previously been linked to colon cancer. Now researchers are getting clues about how the bacterium promotes tumor growth.

raven

SUPERPOWER  Ravens may have a birdlike version of the power to plan ahead — as apes do.

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