Photographer Eric Cheng has captured some of the most dramatic natural phenomena on Earth with drones. And now he has a new book, Aerial Photography and Videography Using Drones, about learning the the art of drone photography.
Head Pressing – If you see your cat or dog do this, it's not trying to be cute or funny. This is called "head pressing" and is usually a sign of a critical medical condition. Go to the vet immediately.