Bacteria so large that it is visible to the human eye has been discovered by scientists.
The strand of bacteria, named Thiomargarita magnifica, is the size of an eyelash and was identified swimming in mangrove swamps in the Caribbean.
Cells of most bacterial species range from between 2 to 750 micrometres (tens of thousands of a centimetre) in length but T.magnifica stretches to more than a centimetre.
