› added 3 years ago

745

TIL Iguanas can voluntarily stop their hearts for up to 45 minutes to avoid sonic detection by sharks.

Read more science-frontiers.com

via reddit.com

YplWA TIL that the common ancestor of all fish had lungs, and that modern swim bladders in most fish are actually highly-derived lungs. In more oxygen-poor times hundreds of millions of years ago, being able to gulp down oxygen, which was more plentiful in air, was a huge evolutionary advantage.
b9ppp TIL Black Mormons couldn't become priests until 1978 when their Prophet had an unprecedented revelation that the "time had come" to allow it, after which black people thanked him for his "many hours" begging God to permit it.
ADYAl TIL there are radioactive elements called "bone seekers" because they are chemically similar to calcium and the body tries to use them to build bones.
gMa6L TIL that HG Wells was basically a huge nerd. He invented a tabletop wargame, like Warhammer, and once complained that a game was ruined by the "chattering of lady visitors."
PY1vL TIL India requires internet café owners to take pictures of all their customers, keep browsing history for one year, and forward all this data to the government.