MURCHISON, Texas—The wild Assateague Island horse who was removed from the Maryland tourist attraction by the National Park Service last month, is settling in seamlessly at Black Beauty Ranch, part of the Humane Society of the United States. The 13-year-old horse named Delegate’s Pride—also known as...

Flying back and forth over Cape Cod Bay, a survey plane spotted a half dozen of the world’s rarest creatures: North Atlantic right whales. Such sightings are good news. The species hovers near extinction—by one estimate, fewer than 360 remain. Each time researchers locate a whale, they take pictures...