Science

Warm weather forces park officials to suspend Isle Royale wolf count for first time in decades
The National Park Service suspended the count Tuesday out of concerns that warm weather has left the ice surrounding the island unsafe for the ski-planes the researchers use in their surveys. Regional temperatures have been above freezing for the last week.
That giant extinct shark, Megalodon? Maybe it wasn't so mega
The ancient extinct shark that starred in the film The Meg is thought to be the largest shark that ever swam the Earth. But there's debate over what it really looked like.
NASA finds Ingenuity after losing contact with the Mars helicopter
The helicopter had stopped communicating with the Perseverance rover during a test flight. Trouble for the overachieving rotorcraft threatened to cut short its otherworldly flight exploration.
Researchers find a massive number of plastic particles in bottled water
Researchers found roughly 240,000 detectable plastic fragments in a typical liter of bottled water. Most of them were nanoplastics — particles less than 1 micrometer in size.