Jennifer Nalewicki is a Salt Lake City-based journalist whose work has been featured in The New York Times, Smithsonian Magazine, Scientific American, Popular Mechanics and more. She covers several science topics from planet Earth to paleontology and archaeology to health and culture. Prior to freelancing, Jennifer held an Editor role at Time Inc.
Paleontologists have discovered the earliest molecular evidence of the toxic pigment that causes red hair in the fossil record — in 10 million-year-old frog fossils.
"It's the exact same pigment that causes red hair in us," lead study author Tiffany Slater, a postdoctoral researcher of paleobiology at University College Cork in Ireland, told Live Science."But that doesn't mean that the frogs were necessarily ginger colored when they were alive." Their findings showed traces of pheomelanin contained within the liver tissues of the ancient frogs.
Slater said their experiments are"pushing the boundaries" of what they thought was possible regarding the information a fossil can contain.
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