Life
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We summarize the week's scientific breakthroughs every Thursday.
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LifeMicroraptor’s true blue colors
The birdlike dinosaur had black, iridescent feathers that may have helped it attract mates.
By Devin Powell -
PaleontologyTriceratops reigns alone again
Fossil comparison fends off a challenge that holds the dinosaur is but the immature version of the Torosaurus.
By Devin Powell -
LifeBee genes may drive them to adventure
Scouting behavior linked to certain molecules in insect brains.
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LifeExercise brings on DNA changes
Workouts and caffeine can turn on genes that make energy-regulating proteins.
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LifeSawfish don’t saw
Spiked snouts whack prey to the bottom, helping the predator better get its mouth around dinner.
By Susan Milius -
LifeFossil pushes back land-animal debut
Creatures first squished mud through their five toes millions of years earlier than previously believed.
By Devin Powell -
PhysicsPlants’ reproductive weaponry unfurled
Botanical tricks include adhesion and bubbles to spread their spores into the environment.
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LifeAfter a breakup, coral embryos live on as clones
Even modest waves can break apart embryonic corals, but the bits that survive can grow into separate clones.
By Susan Milius -
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LifePollutants long gone, but disease carries on
Even without new exposures, various chemicals can impact DNA and cause illness across at least three subsequent generations, rat study finds.
By Janet Raloff -
AnthropologyFrozen mummy’s genetic blueprints unveiled
DNA study reveals the 5,300-year-old Iceman had brown eyes, Lyme disease and links to modern-day Corsicans and Sardinians.