Today, June 27th, we celebrate World Microbiome Day 2025 – a global initiative to raise awareness about the incredible world of microorganisms and their crucial role in our ecosystems.

To celebrate the Marine Microbiome Forum has launched a special website with information to spark fascination and quizzes to test your knowledge.

Marine microbes are more than just tiny life forms – they are the hidden engines of Earth’s climate regulation, carbon cycling, and marine food webs.

From deep-sea vents to sunlit surface waters, marine microbiomes are the unsung heroes of our planet.

Follow us throughout the day as we share stories, science, and actions you can take to support a healthier planet through better understanding of its smallest life. And do not forget the Quiz to find out which marine microbiome matches your personality. Remember, this is more of a fun way to learn about the microbes, rather than a sophisticated personal test.