In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
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If Earth's history was condensed into twenty-four hours, life would've appeared at around 4am, land plants at 10:24pm, dinosaur extinction at 11:41pm, and human history would’ve began at 11:58:43pm.
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Only about 2% of the world population has green eyes.
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Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
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