OMG, it’s like the Benjamin Button of jellyfish! According to a rather stilted article in the Telegraph:
“The Turritopsis Nutricula is able to revert back to a juvenile form once it mates after becoming sexually mature. Marine biologists say the jellyfish numbers are rocketing because they need not die. Dr Maria Miglietta of the Smithsonian Tropical Marine Institute said: ‘We are looking at a worldwide silent invasion.'”
So maybe it’s more The Curious Case of Benjamin Button meets Cloverfield? In any case, someone should secure the film rights, stat — it would probably make more money than the former.