A South Carolina man pleaded guilty on Thursday to importing sperm whale teeth and bones from four countries and selling them in the United States, federal prosecutors said. The man, Lauren H. DeLoach, 69, of St. Helena Island, S.C., pleaded guilty to Lacey Act and Marine Mammal Protection Act charges for importing and selling sperm…
Around 76 million years ago, something took a bite out of a young pterosaur. Pterosaurs were large, flying reptiles that roamed our planet’s skies when dinosaurs ruled the Earth. Some species were giants. But even their large size didn’t keep them off the menu. Paleontologists have discovered a tooth mark in a neck vertebra of…
Water fluoridation is widely seen as one of the great public health achievements of the 20th century, credited with widely reducing tooth decay. But there has been growing controversy among scientists about whether fluoride may be linked to lower I.Q. scores in children. A comprehensive federal analysis of scores of previous studies, published this week…