Cows can sleep standing up, but they can only dream lying down.
745
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
94
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Lurch, a Watusi bull, had the largest horns in the world.
32
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
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
If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
18