Description: [caption id="" align="alignright" width="167" caption="The Mona Lisa, between 1503 and 1505, by Leonardo da Vinci, Oil on poplar, The Louvre Museum."][/caption] Scientists have discovered the secret behind Mona Lisa’s beguiling smile by using x-ray technology [via More Intelligent Life]. And while we're at it, scientists use UV light to reveal how awesomely gaudy the colors of
Description: A salamander, the axolotl, found in Mexico that once numbered in the 6000s/square kilometer is now down to 35. [via Scientific American]As we know, the Biodiversity Heritage Library has a lot of gorgeous images of natural specimen, in fact over 2 million of them, and it includes some from the Archives! [via Open Culture]Beatles fans, John Lennon's stolen diary was recovered by