A look at this week's top-rated websites from StumbleUpon, recorded on April 22.
This week's selection includes a video of an octopus that wants an underwater video camera of its own and isn't afraid to steal one, a cartoon that shows you why sandwiches always win, an article in National Geographic that talks about our universe being in another universe's black hole, an online game that tests your plant growing skills against nature, and a photo from 1940 that appears to show a time traveler from the future.
Watch a Cool Short Film Made by an Octopus - Vulture
Hyperbole and a Half: How a Sandwich Makes You Its Bitch in
Every Black Hole Contains Another Universe?
Extinct! - Darwin Today
Time Traveler Captured In Museum Photograph - TimeTravel - G