Cows can sleep standing up, but they can only dream lying down.
745
The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
12
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
The University of Oxford (teaching since 1096) predates the Aztec empire (1428 - 1521).
14
The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
94
The strangers in your dreams are actually people that you've seen in real life.
50