THE KNOWLEDGE FEED

Brain Game

Free Refills

Brain Game

Free Refills

Pop Culture’s Greatest Rides

Pop Culture’s Greatest Rides

Miss Cellania

9 Star Wars Guitars

Miss Cellania

9 Star Wars Guitars

Living In A Bubble

Living In A Bubble

Brain Game

Like Sugar

Brain Game

Like Sugar

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Frogs Use Storm Drains for Better Mating Calls

Matt Soniak

As humans take up ever more space and urbanize the untamed wilderness, the animals that call these places home have a tough choice to make: move on to someplace else or adapt to their new surroundings

How Family Trees Work

Chris Higgins

Beautiful Visualization Shows 24 Hours of Flights Over the North Atlantic

Erin McCarthy

Morning Cup of Links: The Pugs of Westeros

Miss Cellania

"I'll Bite Every German Player if I Have To"

Nick Greene

Will Ferrell's World Cup pep talk.

Is Laughter the Best Medicine?

Hannah Keyser

The best medicine? No. Any sort of medicine at all? Well, that one is at least debatable.

8 Items from the 1985 Montgomery Ward’s Catalog We Wish Were Still for Sale

Therese Oneill

It is true that some of these things can still be found, either old and faded on eBay or earnestly reproduced on specialty sites like The Vermont Country Store.

George Takei Reviews 20 Totally Random Products on Amazon

Hannah Keyser

Somehow, one of Mental Floss' favorite Star Trek alums-turned-internet-sensations, George Takei, finds time to write Amazon reviews for products you never knew existed.

20 Movies You Might Not Know Were Based on Books

Rudie Obias

Hollywood often turns to books for movie ideas, but sometimes the films are so popular they overshadow their source material.

The Missing Links: Deadly Children's Toys

Colin Patrick

A 1639 Map Shows California as an Island

Erin McCarthy

In the early days of mapmaking, plotting out the world was no easy task.

The Most Interesting Comics of the Week

Rich Barrett

This week's new comics include John Romita, Jr. on Superman, Robert Kirkman's new comic and Cartoon Network has a Crisis.

Why Do Koalas Hug Trees?

Jessica Hullinger

Just as we humans cling to our air conditioners and plunge our heads into the freezer in the summer months, koalas have found a source of relief from stifling temperatures.

Brain Game: Turn It Over

Sandy Wood

Morning Cup of Links: Cell Phones in the Classroom

Miss Cellania

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