› added 9 years ago

577

TIL that all astronauts have to learn how to speak Russian, and all cosmonauts have to learn how to speak English

Read more universetoday.com

via ift.tt

N7Y51 TIL a study of spiny lobsters showed they avoid others who've contracted an infectious disease called PaV1 that is transmitted by physical contact and which has a steady 7% infection rate in Florida waters. Spiny lobsters are very social and share communal dens but will shun infected individuals.
dnAB TIL that the Argentine cougar won’t defend itself against humans but start trembling, moaning, and crying to implore compassion.
XED9r TIL that every station on the Mexico City Metro has a unique symbol in order to help illiterate passengers navigate throughout the system.
grdJA TIL the United States had a National Raisin Reserve from 1949 until 2015, when the Supreme Court ruled it unconstitutional due to the raisins being seized without market compensation.
VMDWZ TIL of a recently discovered aggressive strain of HIV that progresses to AIDS in 3 years