Tree Profile: Aspen – So Much More Than a Tree – National Forest FoundationOne aspen tree is actually only a small part of a larger organism. A stand or group of aspen trees is considered a singular organism with the main life force underground in the extensive root system. Before a single aspen trunk appears above the surface, the root system may lie dormant for many years until the conditions are just right, including sufficient sunlight. In a single stand, each tree is a genetic replicate of the other, hence the name a “clone” of aspens used to describe a stand. Amazon.com: The Field of Blood: Violence in Congress and the Road to Civil War eBook: Joanne B. Freeman: Kindle StoreIn The Field of Blood, Joanne B. Freeman recovers the long-lost story of physical violence on the floor of the U.S. Congress. Arborists Have Cloned Ancient Redwoods From Their Massive Stumps – Yale E360A team of arborists has successfully cloned and grown saplings from the stumps of some of the world’s oldest and largest coast redwoods, some of which were 3,000 years old and measured 35 feet in diameter when they were cut down in the 19th and 20th centuries. Earlier this month, 75 of the cloned saplings were planted at the Presidio national park in San Francisco. ***** They […]

Ethan Mollick on Twitter: “Interesting paper on unexpected discrimination in online ads: women see less ads for STEM job openings because they click them (and other ads) more. That makes ads for women more expensive, so a gender-neutral ad bidding system NUKnightLab/sql-mysteries: Inspired by @veltman’s command-line mystery, use SQL to research clues and find out whodunit!There’s been a Murder in SQL City! The SQL Murder Mystery is designed to be both a self-directed lesson to learn SQL concepts and commands and a fun game for experienced SQL users to solve an intriguing crime. Hospital checklists are meant to save lives — so why do they often fail? : Nature News & CommentThis article hits on so many things that cause failures in so many initiatives. “They were 95% the same, but that 5% made it work for them,” he says. “Every one of these hospitals thought that theirs was the best.” Museum 2.0: Rowboats and Magic Feathers: Reflections on 13 Years of Museum 2.0 Animal Extinction: Caring for the Last of a Species – The AtlanticWhen animals die out, the last survivor is called an endling.