light-pollution

Light pollution is the excessive or misdirected artificial light from human activity that brightens the night sky, disrupting natural darkness and obscuring stars.

Biology

Birds are singing almost an hour longer each day: Here's why

If you've noticed that you're hearing birdsong longer into your day than you used to, your observation fits with a study examining millions of hours of tweets and warbles. But just why are our feathered friends holding longer concerts?