Nature and EnvironmentGermanyFreshwater pearl mussels: An ecosystem gemTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoNature and EnvironmentGermanyJürgen Schneider12/01/2022December 1, 2022The freshwater pearl mussel is a globally endangered species prized for its delicate gems. Hunters, agriculture and pollution have decimated populations. But conservationists in Germany have a plan to revive them.https://p.dw.com/p/4KLc1Advertisement