Ultimate Limits

In the UK, only around 1.5% of pregnancies lead to twins, and as for triplets, it's a vanishingly small three ten-thousandths of a percent (Credit: Getty Images)
Ultimate Limits
Did a woman really have 69 kids?
By Adam Hadhazy
(Credit: Nasa)
Ultimate Limits
How fast can humans travel?
By Adam Hadhazy
Our eyes have amazing abilities - some can even see extra colours (Credit: SPL)
Ultimate Limits
The limits of human sight
By Adam Hadhazy
(Credit: Getty Images)
Ultimate Limits
Will humans keep getting taller?
By Adam Hadhazy
Is there a limit to the human mind's capacity? (Credit: Getty Images)
Ultimate Limits
What’s the most we can remember?
By Adam Hadhazy
(Getty Images)
Ultimate Limits
How long can we stay awake?
By Adam Hadhazy
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