(CNN) — The crowd gathered for the bighorn sheep sendoff in Nevada far outnumbered the 21 animals who galloped out of their pens and into their new habitat. But the small number of sheep could be instrumental
Mayflies, which form swarms in the billions that are visible on weather radar, are in steep decline, mirroring the plight of insects worldwide. Every summer, mayflies burst forth from lakes and rivers,
Mental health in our cities is an increasingly urgent issue. Rates of disorders such as anxiety and depression are high. Urban design and planning can promote mental health by refocusing on spaces we in
Wildfires are a part of the natural rhythms of Australia's environment. But scientists haven't seen anything like this before. The country is grappling with some of the worst wildfires in its history.