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TIL a gamergate is a mated worker ant that can reproduce sexually by laying fertilized eggs that will develop as females. There are 100–200 different species in which gamergates reproduce (roughly 1% of all ants) and in some species the queen caste has been completely replaced by gamergates

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P1Yrg TIL that less than half of all societies kiss with their lips, according to a study of 168 cultures from around the world and a professor of anthropology at the University of Nevada Las Vegas found that only 46% use lip-to-lip kissing in a romantic sense, excluding things like parent-child kissing.
jNKjN TIL that Peter Mahew portrayed the character Chewbacca from the Star Wars films for nearly 40 years, from 1977 to 2015. Chewbacca was nearly 200 years old in the films and was inspired by George Lucas' dog.
Y7Y1r TIL sighing purposefully several times in a row for a few minutes each day, aka cyclic sighing, can transform that short-term benefit into a form of long-lasting stress relief. Inhaling reduces blood return to the heart, speeding it up; exhaling increases return, slowing the heart rate.
R5797 TIL in 1956, a U-2 spy plane had an engine flameout over western Tennessee and was able to glide over 300 miles to land in Albuquerque New Mexico. Story on Page 90 of the PDF.
PYB0Z TIL That most of the world's biggest, longest, & tallest rollercoasters are built by a company from one of the smallest countries in the world, Intamin of Liechtenstein