The 'silent' invasion of a widespread freshwater jellyfish across Europe

A new study published in the journal People and Nature reveals a significant gap in public awareness regarding one of the world's most widespread invasive species: the freshwater jellyfish Craspedacusta sowerbii. Despite being present on six continents and well-documented by scientists in Europe, this unnoticed (cryptic meaning "under the radar") invader remains largely unknown to the public, a factor that researchers say may be hindering the development of early warning systems and effective environmental policy.