Common ocean bacteria struggle to divide when conditions change, reshaping how warming seas affect ecosystems.

The original version of this story appeared in Quanta Magazine. Prochlorococcus bacteria are so small that you’d have to line up around a thousand of them to match the thickness of a human thumbnail.

A new study finds that a trait helping a marine bacterium survive and flourish today may ultimately become its Achilles Heel as ocean conditions continue to shift.

We’ve poured more than 150 million metric tons of plastic garbage into the ocean since 1950. Plastic bits have turned up in places as remote as the bottom of the Mariana Trench, where scientists ...

Reusable water bottles can help you stay hydrated, but experts say not cleaning your water bottle regularly can expose you to some potentially harmful bacteria. Boston 25’s sister station met with ...