Somewhere deep within the waters of the North Pacific, a whale wanders alone. No one has ever seen him, but they’ve certainly heard him: this mystery whale’s song has haunted marine researchers since oceanographer Bill Watkins first heard his strange voice calling in 1989. The whale’s call was pitched higher than other whales’—52 hertz, to be exact, and so that’s what they named the mysterious creature.... READ ON

When I was a little dinosaur fan, all I wanted was a pet dinosaur. An Apatosaurus would have been choice—big enough to be impressive, but not especially likely to eat me. But that’s never going to happen. As much as I hate to say that science will never solve a particular question or problem, the barriers to a real life Jurassic Park are insurmountable.... READ ON

Reader Jane wrote in to note that clouds look so nice and fluffy and lighter-than-air, so they certainly can’t weigh much. Right?... READ ON