Animals
Dolphins Whistle Their Names with Complex, Expressive Patterns
A new study quantifies how dolphins vary their “signature whistles”
Stories by Rebecca Dzombak
Pollution
Toxic Algae Plagued Ancient Maya Civilization
Toxic algae blooms found could have helped destabilize society
Ecology
Newfound Ocean Hotspot Draws Millions of Migrating Birds Each Year
Scientists hope to protect these critical international waters
Natural Disasters
Today’s Wildfires Are Taking Us into Uncharted Territory
Data on 2,000 years of Rocky Mountain forest fires shows skyrocketing damage
