Scientists from Imperial College London and the University of Edinburgh say they have shown that tiny crystals found inside bacteria provide a magnetic compass to help them navigate through sediment to find the best food and it provides fresh clues to explain biomagnetism – a phenomenon in which some birds, insects and marine life navigate using the magnetic field that encompasses the Earth.
Researchers say their study, published in the Journal of the Royal Society Interface, focuses on
magnetotactic bacteria, which contain chains of magnetic crystals, called magnetosomes. They exist all over the globe, living in lake and pond sediments and in ocean coastal regions.