Why Scientists Are So Excited About the World’s First Nuclear Clock https://www.scientificamerican.com/article/the-worlds-first-nuclear-clock-could-unlock-the-universes-dark-secrets/
19th Century Kenyan lions ate humans, DNA stuck between their teeth shows. The lions, dubbed the ‘Tsavo Man-Eaters’, are thought to have killed dozens of people, including those working along the Kenya-Uganda Railway in the late 19th Century