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
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
A cow produces around 200,000 glasses of milk in her lifetime.
373
If you have 1 billion dollars and spend $1,000 every day, it would take you 2,740 years to go broke.
31
The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
94
You forget 90% of your dreams.
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