[A Fabulous Frog Feature in our Foibles] A bacterium from the intestines of Japanese tree frogs has “exhibited remarkably potent” tumor-killing abilities when administered intravenously, outperforming current standard therapies and paving the way for an entirely new approach to treating cancer. Researchers at the Japan Advanced Institute of Science and Technology (JAIST) had taken a keen interest in amphibian and reptile gut microbes for several reasons – spontaneous tumors are very rare in these wild animal types, and when they do appear they’re generally linked to pollutants or lab conditions. …In addition to this, these animals have long lifespans relative to size, and naturally endure extreme cellular stress … and live in pathogen-rich habitats, which would normally be considered things to elevate cancer risk, not lower it. …The team isolated 45 bacterial strains from the tree frogs … and found that giving a single shot of E. americana intravenously to mice with colorectal cancer, completely eliminated tumors in every treated animal.