Scientists in Brazil say they’ve made a mysterious discovery. They claim to have found a virus made of genetic material never before seen elsewhere. But you likely have nothing to fear from this virus: It seems to only hunt amoebas. The find is detailed in a paper released last month on the preprint website bioRxiv. R esearch showcased on bioRxiv hasn’t yet gone through peer review , a nd the data on the virus’s genetic structure, or genome, hasn’t been made public yet .