How do cats purr? What was the real speed of the Tyrannosaurus? What was Caligula’s real name? Lots of interesting facts are omitted during school lessons, but it’s never too late to expand your knowledge.
from BrightSide RSS https://brightside.me/wonder-curiosities/19-facts-about-our-world-that-can-puzzle-anyone-491210/
via IFTTT