Bizarre Virus-like ‘Obelisks’ Found in Human Mouths and Guts

Our mouths and guts are teeming with mysterious somethings that are unknown to science, new research suggests. A team says they’ve discovered distinct virus-like structures hanging out among the bacteria that live in our bodies. The researchers have coined these structures “obelisks,” and they might further redefine what it means to be a living thing. … Read more