› added 4 months ago

7

TIL that a new type of roar was discovered in African lions. Besides the classic “full-throated” roar, researchers using AI analysis found an “intermediate” lion roar previously unknown. This might help conservation-efforts through deeper insights on how lions communicate in the wild.

Read more news.exeter.ac.uk

via reddit.com

ZpXQY TIL: People paid to have their mail delivered to them until March 3rd, 1863 when the US Congress established free mail delivery to cities. New York City delivered residential mail 4 times daily until 1940. NYC reduced residential mail delivery to once daily (due to high costs) in 1950.
0ryA TIL There was a batman villain named Condiment King and he was defeated by slipping on his own ketchup.
16kjP TIL that some helicopters have various parts that are intentionally designed asymmetrically, to compensate for the tail rotor pushing the helicopter sideways when it’s hovering. They also have asymmetrical landing gear for the rotor to remain level when landed
4k6PJ TIL that despite no written rule banning elite women from playing football with a men's team, in 2004, Fifa stopped Mexican club Atlético Celaya from signing female player Maribel Dominguez, stating that “there must be a clear separation between men's and women's football.”
aMgb TIL that the original pledge of allegiance was written in 1892. It read: “I pledge allegiance to my Flag and the Republic for which it stands; one nation indivisible, with liberty and Justice for all.” Many phrases were added throughout the years, with the last phrase (“under God”) added in 1954.