The ‘blob’: Paris zoo unveils unusual organism which can heal itself and has 720 sexes


PARIS, France – It is bright yellow, can creep along at a speed of up to 4 centimeters (1.6 inches) per hour, can solve problems even though it doesn’t have a brain and can heal itself if it is cut in two.

Meet the “blob,” an unusual organism which will go on display Saturday at the Paris Zoological Park, as part of a first-of-its-kind exhibition intended to showcase its rare abilities.

The slime mold, which is known officially as physarum polycephalum (or “the many headed slime”) is neither a plant, an animal or a fungus. It doesn’t have two sexes — male and female — it has 720. And it can also split into different organisms and then fuse back together, according to a press release from the Zoological Park.

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📆 Dès le 19 octobre, vous pourrez découvrir une nouvelle espèce au @zoodeparis. Ce n’est ni un animal, ni une plante, ni un champignon… Il s'agit du blob ! 😮🤔 . Cet être unicellulaire est apparu il y a un milliard d'années, soit sept cent cinquante millions d’années avant les dinosaures. 🦕🦖 Ses extraordinaires capacités fascinent les scientifiques. Par exemple, le blob ne possède pas deux sexes, mais sept cent vingt ! Il parvient à se déplacer sans pattes, sans ailes ou nageoires, à la vitesse d’un centimètre à l’heure, quatre s’il sprinte ! 🏃‍♂️ Il peut manger par ingestion sans bouche ou estomac. Découpez-le en deux, il cicatrise en deux minutes ! Presque immortel, il ne craint que la lumière et la sécheresse. . Profitez du Rendez-vous sauvage Europe, du 19 octobre 3 novembre 2019, pour découvrir cet être hors du commun ! . 📷 MNHN – F.-G. Grandin

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The unicellular being is believed to be around a billion years old, but it first came to public’s attention in May 1973, after a Texas woman discovered a rapidly-expanding yellow blob growing in her backyard. With its otherworldly, extraterrestrial appearance, the blob became a brief media sensation, even picking up a mention in the New York Times.

The Texas blob died as quickly as it had appeared. The world all but forgot about the peculiar slime until new research published in 2016 discovered it had a form of intelligence.

Audrey Dussutour, a biologist at France’s National Center for Scientific Research, managed to teach it to ignore noxious substances, according to a paper she co-authored in the journal Proceedings of the Royal Society Part B. A year later, it was able to remember that behavior, according to her research.

It is also capable of solving problems, such as finding the shortest way to exit a labyrinth and anticipating changes in its environment, according to scientific researchers at the Zoological Park.

Dwelling on forest floors

Scientists initially grew the blob in petri dishes, feeding it oatmeal, its favorite food, according to a video published by the Zoological Park. Once it had reached a certain size, it was grafted onto tree bark — which it feeds on — and placed in a terrarium, where visitors will be able to view it from October 19.

“Acacia trees, oak bark and chestnut bark are its favorite places,” said the zoo’s Marlene Itan.

The blob is normally found on forest floors in Europe, she added. “It thrives in temperatures oscillating between 19 and 25 degrees Celsius (66 to 77 degrees Fahrenheit) and when humidity levels reach 80% to 100%,” she said.

Almost immortal, its only foes are light and drought, according to the zoo’s press release. But it can hibernate during several years when threatened, it added.

The blob takes its name from a 1958 cult horror-movie starring Steve McQueen, in which an alien life form takes over a small Pennsylvania town.

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