› added 6 years ago

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TIL that it takes four or five generations of monarch butterflies to complete the annual migration from Mexico to northern USA/Canada in the spring but in the fall a single "super generation" completes the entire 3,000 mile journey.

Read more news.nationalgeographic.com

via reddit.com

loPEa TIL of "Shifting Baseline Syndrome." This is when significant systemic changes occur over time in a way that makes them extremely difficult for humans to perceive. 'New normals' are established which are experienced as though little to no change has taken place.
Yplev TIL that a NASA astronaut Frank Culbertson was the only American not on Earth when the 9/11 attacks occurred. His morning call started with “Well, Frank, we’re not having a very good day down here on earth.”
R7N0j TIL Portions of the video for Limp Bizkit's "Rollin" was filmed atop the World Trade Center's South tower not long before its destruction. The day before the towers fell, the band received a thank-you letter from the World Trade Center for featuring the building in their video.
xnOw TIL that Thomas Day, a man who attempted to train women to be good wives, was killed when he was thrown from a horse that he refused to train because he felt training them was cruel.
DQv8r TIL a very valuable painting called "Christ Mocked" was found to have been just hanging in an elderly woman's kitchen for years. She had been thinking of throwing it out, but her family called in an appraiser.