Female chimpanzees that forge strong, grooming-rich friendships with other females dramatically boost their infants’ odds of making it past the perilous first year—no kin required. Three...
Wild orcas across four continents have repeatedly floated fish and other prey to astonished swimmers and boaters, hinting that the ocean’s top predator likes to make...
Locked-down Hungarians who gained or lost pets saw almost no lasting shift in mood or loneliness, and new dog owners actually felt less calm and satisfied...
Scientists have uncovered a surprising new way that urea—an essential building block for life—could have formed on the early Earth. Instead of requiring high temperatures or...
Cats overwhelmingly choose to sleep on their left side, a habit researchers say could be tied to survival. This sleep position activates the brain’s right hemisphere...
Two newly discovered viruses lurking in bats are dangerously similar to Nipah and Hendra, both of which have caused deadly outbreaks in humans. Found in fruit...
Exploration for deep-sea minerals in the Clarion Clipperton Zone threatens to disrupt an unexpectedly rich ecosystem of whales and dolphins. New studies have detected endangered species...