The male Bonellia viridis, or Green Spoonworm, is so small that he lives inside the female!
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Consumption of beer worldwide is estimated to be around 125 billions liters per year, i.e. not less than 50,000 Olympic pools.
Estimation based on amounts ranging from 114 to 132 GL of beer per year in comparison with a 2.5 million liters Olympic pool (50 m length x 25 m width x 2 m depth – IOC Norms)
Sources:
Volume of World Beer Consumption
Volume of a Swimming Pool