Brass doorknobs automatically disinfect themselves in about 8 hours.
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Before making Finding Nemo, the animation gurus at Pixar Studios had to take a graduate class in fish biology and oceanography.
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A type of strawberry that almost became extinct is now being sold in Europe. It tastes like pineapple so they call it pineberry.
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Elephants are among the most emotional creatures in the world - they have even been known to rescue other animals, such as trapped dogs.
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India's richest person, Mukesh Ambani, built a $1 billion home. It has 27 habitable floors, including six parking floors with a capacity to hold up to 168 cars. 600 staff maintain the home.
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