Pneumonic plague is both “the least common and most dangerous type of plague,” according to the Cleveland Clinic.

Pneumonic plague is both “the least common and most dangerous type of plague,” according to the Cleveland Clinic.

One spring, or manantial, is fed by groundwater that flows from a small orifice in the rock to create the larger pool. It is ...

Scientists found a “thick”-lipped creature in a “swiftly flowing” river of Switzerland and discovered a new species, a study said. Photo from Calegari, Freyhof, Waldock, Wegscheider, Josi, Rüber and ...

Assets worth over $64 million were seized and 94 people arrested as part of a multinational law enforcement operation ...