Tiny tyrannosaur, art acne, what zebra stripes do, ageing your DNA, hacking photosynthesis and sinking in the Sun

Quirks and Quarks

Tiny tyrannosaur fossil helps scientists understand how T-rex grew so large; Art gets a bad case of acne and it has conservators concerned; Zebra stripes confuse tiny predators, not the big ones;Scientists can read the 'rust' on a person's DNA to predict when they'll die; Hacking photosynthesis to re-engineer crop plants and feed the world; What would it be like to stand on the surface of the sun?

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