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kane · 3 years ago Kathrine Switzer entered and completed the Boston Marathon in 1967, five years before women were officially allowed to compete in it. After realizing a woman was running, organizer Jock Semple tried to stop her. Some people provided a protective shield so she could complete it. by rayne · 3 years ago what friends? by rayne · 3 years ago Chaos and confusion 101 by koloss · 3 years ago 10 strongest metals on Earth and their uses. by rayne · 3 years ago Teenage Goals. by koloss · 3 years ago Sorry if it's been posted before. If not, it's a cool guide by koloss · 3 years ago If Holly (Ilex aquifolium) finds its leaves are being nibbled by deer, it switches genes on to make them spiky when they regrow. So on taller Holly trees, the upper leaves (which are out of reach) have smooth edges, while the lower leaves are prickly From @LeifBersweden on twitter by rayne · 3 years ago Clever sign on a parking garage by koloss · 3 years ago 16294 new items since last reload