The invasion of Ukraine hampered collaboration with Russian climate scientists. That's bad news for our collective ability to understand, and prepare for, a hotter planet.
Hundreds of millions of beavers used to populate the West but were hunted to near extinction. Turns out, beavers are critical to healthy water ecosystems, so now there are efforts to bring them back.
Circa 1950, Idaho Fish and Game tried a new way to handle beaver overpopulation: relocate some by dropping them from planes. A film was made to document the practice, but it was lost — until now.