Surviving in the Dark: Arctic Phytoplankton's Secret
Some Arctic phytoplankton stay active even in total darkness—no dormancy, no waiting. The moment sunlight returns, they’re ready to photosynthesize. Scientists aren’t sure how they pull this off, but if deep-sea algae have the same trick, Earth’s productive ocean could stretch far deeper than we thought. Life finds a way, even in the coldest, darkest corners of the planet.