Marmokreb crayfish can clown themselves - fox news
Most crayfish reproduce by having sex.But an all-female species of mutant crayfish has managed to evolve the ability to clone itself, without the need for a male.Known as marmokrebs, or marbled crayfish, the species' remarkable cloning ability has led it to 'multiply out of control'.Now scientists are warning the female crustaceans are beginning to take over the world.While it may sound like the plot of the horror movie, they say there may be some benefits to the strange crayfish invasion; the crayfish’s unusual evolution could also provide a strategy to tackle cancer, that clones itself in a similar way.In a new study published in the journal Nature Ecology and Evolution, researchers sequenced the genomes of 11 marbled crayfish.All 11 creatures had nearly identical genomes, suggesting they were clones.Researchers believe these mutant creatures began evolving by accident almost 25 years ago, after a German aquarium hobbyist bought a crayfish that he was told was a 'Texas crayfish'.But he was surprised when his marbled crayfish produced hundreds of eggs at a time and grew large.He gave away the crayfish, and they eventually ended up being sold in pet shops in Germany.But owners soon began noticing that their Marmokrebs were reproducing without the need to mate, and all offspring were female, fertile and clones of their mother.Once the new species of crayfish evolved, male slough crayfish could no longer produce offspring with the female Marmokrebs, even though the male slough
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