Hundreds Have Vanished from National Parks. Is Bigfoot to Blame?

Hundreds Have Vanished From National Parks. Is Bigfoot to Blame? View this email in your browser Hundreds Have Vanished From National Parks. Is Bigfoot to Blame?   How Patriotism and American Pro Sports Became Allied At a rally in Alabama, President Donald Trump poured gasoline on the Colin Kaepernick national anthem-kneeling controversy...  See more Concept of Zero Is Centuries Older Than Assumed   In mathematics, zero has two meanings. It can mean nothing, i.e., "I have zero dollars in my bank account," or.. See more   True Nature of Ravenous Supermassive Black Holes Revealed     Why the 21st Century Actually Might Have Started in 2007     Gravitational Waves Detected Again, But This Is the Best Yet The era of gravitational wave astronomy has truly begun. For the fourth time, scientists have detected the gravitational waves generated by two colliding black holes.But this time it's even better.  See more >>   Copyright © 2017 HowStuffWorks, All rights reserved. You are receiving this email because you opted in at our website howstuffworks.com Our mailing address is: HowStuffWorks 675 Ponce de Leon Drive NE Suite 4500 Atlanta, Ga 30308 Add us to your address book Want to change how you receive these promotional emails? You can update your preferences or unsubscribe from this list