For people with "thalassophobia," or the fear of deep bodies of water, blue holes are something out of a nightmare. These massive vertical caves open up in the shallow waters near coastlines, but blue ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Sinkholes are natural depressions that form when rock ...

Editorial Note: Talk Android may contain affiliate links on some articles. If you make a purchase through these links, we will earn a commission at no extra cost to you. Learn more. Off the coast of ...