Colossal Biosciences, which is dedicated to bringing back extinct species, has reported the first successes: scientists have managed to recreate with 99.9% accuracy the genome of the Tasmanian marsupial wolf, which became extinct almost a hundred years ago. The genome contains only 45 gaps, which can be closed in the coming months. The new organism, genetically close to the extinct one, will be based on its closest relative, the fat-tailed marsupial mouse. In order for the critter to survive in the wild, Colossal has engaged in conservation efforts and found a way to make the new species immune to the poison of cane toads, an invasive species that triggered the extinction of marsupials. Despite its claimed successes, Colossal has yet to provide the scientific community with evidence to support a complete reconstruction of the marsupial wolf genome. If all goes well with the marsupials, Colossal promises to resurrect the dodo bird and woolly mammoths by modifying the genome of their closest relatives - pigeons and elephants, respectively.