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Trent Jackson

TRANSPLANT TOLERANCE  An emergency liver transplant saved 53-year-old Trent Jackson, but he has struggled to keep his body from rejecting the donated organ.

gay couple walking in a field

“GAY GENES” New research has uncovered DNA differences linked to same-sex sexuality in both men and women. Those genetic tweaks don’t predict who is likely to be gay.

Archaeorhynchus spathula

MAIN SLAB  Archaeorhynchus spathula was a beaked, feathered bird that lived 120 million years ago. A new fossil discovery suggests it had a respiratory system similar to that of modern birds. 

tea cup

THE SWEET LIFE  Artificial sweeteners can enhance taste without piling on extra calories, but the sugar substitutes may have some unintended negative effects.



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