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Last Week's Most Popular Stories

Jason English

In case you weren't obsessively refreshing mentalfloss.com all week, here's what you missed.

3 Creatures with More than One Heart

Will McGough

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.

Strange States: Weird Festivities in Florida's Crazy Keys

Rob Lammle

What Does Marijuana Do to Spiders?

Matt Soniak

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

The Genius Who Invented Brunch

Ethan Trex

Guy Beringer didn’t set out to invent a new meal. Then he had a few drinks...

Oregon to California in 5 Minutes (Time Lapse)

Chris Higgins

How Cereal Transformed American Culture

the mag

More than a century ago, Christian fundamentalists invented cereal to promote a healthy lifestyle free of sin.

Strange States: Florida's Skunk Ape

Rob Lammle

Not even four days could cover all of the weird stuff happening in Florida...

The Original "Mahna Mahna"

Chris Higgins

Weekend Links: Pumpkin Spice, Pumpkin Spice, Pumpkin Spice

Roma Panganiban

World War I Centennial: Serbs Back Down, But Kaiser Warns of Coming Race War

Erik Sass

6 Animals Portrayed Incorrectly in Early Taxonomic Drawings

Erin McCarthy

Sometimes, an artist’s depiction of a creature was a little off.

12 Amazing Facts from the New Book 'Now I Know'

Dan Lewis

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.

What Everyday Behaviors Will Seem Crazy in 50 Years?

Jason English

On Fridays, I ask a series of unrelated questions. Reading your answers helps me get through the afternoon. Answer one, answer all, or ask your own question. On to this week's topics...