The average temperature in the Arctic this summer was the warmest on record, per a report released by the National Oceanic and Atmospheric Administration on Tuesday.
The Geminids, the largest and most-reliable annual meteor shower, will reach a dazzling peak this week.
The big picture: NASA estimates the most activity should occur between Wednesday night and Thursday morning. During the period, given clear skies, people around the globe may be able to see as many as 120 bright and fast meteors streak across the sky every hour, according to the space agency.
Honeyguide birds respond differently to the distinct calls of groups of human honey hunters, according to new research.
Why it matters: Humans have a huge impact on other species. Understanding how other animals cope with their presence could provide insights about the potential for humans and other species to coexist.
