Some cats are allergic to humans.
Stories about the author, the boy, and his stuffed tiger.
In case you weren't obsessively refreshing mentalfloss.com all week, here's what you missed.
The presence of one heart is ingrained into our idea of biology thanks to our own bodies as well as the majority of those we see around us.
According to forest rangers who were led to a hilltop grow site by under-the-influence animals in Italy, deer who’ve consumed marijuana plants are “unusually frisky” and “abnormally high-spirited.” Th
Guy Beringer didn’t set out to invent a new meal. Then he had a few drinks...
More than a century ago, Christian fundamentalists invented cereal to promote a healthy lifestyle free of sin.
Not even four days could cover all of the weird stuff happening in Florida...
Sometimes, an artist’s depiction of a creature was a little off.
Dan Lewis is the author of the new book Now I Know: The Revealing Stories Behind the World's Most Interesting Facts. We asked him to share a few amazing facts from the book.