2. Did you know that a tuna called the 'Blue Fin' tuna can be sold for over $20,000 around the world?
3. Laid end-to-end, the arteries, capillaries and veins would stretch for about 60,000 miles in the average child would be about 100,000 miles in an adult - enough to wrap around the world nearly four times!
4. A volcano can shoot its debris as high as 50 km into the sky.
5. We lose half a litre of water a day through breathing.
6. It has been calculated that a single breath from a mature whale can inflate up to 2000 balloons.
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