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Velvet ants have the Swiss Army knife of venoms

Few creatures can tangle with a velvet ant and walk away unscathed. These ground-dwelling insects are not ants, but parasitic wasps known for their excruciating stings. Now researchers have discovered that the wasps don’t dole…

Twisting Words Crossword

Sid Sivakumar, a puzzle constructor and M.D./Ph.D. student in biomedical engineering and neuroscience, edited this puzzle. Looking for answers? Go to sciencenews.org/puzzle-answers. We’ll publish science-themed crosswords…

The spread of breast cancer may be inherited

A gene involved in setting cholesterol levels may also determine whether breast cancer spreads to other parts of the body. A variant of the PCSK9 gene drives the spread of breast cancer, but a lab-made antibody already approved…