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EntertainmentWhy do whales swing their tails up and down, but sharks swing their tails to the sides?
Why are they the same sea creatures, but the big whales swim in a way that swings their tail up and down and sharks and many other fish swing their tails sideways horizontally?
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Why are there no male queen bees?
The mystery of the 'doomsday' cinema, built in the desert but not a single person has visited for more than 30 years
Mystery of dozens of giant circular structures at the bottom of Lake Michigan
US ship becomes world's largest artificial reef
Wreckage of mysterious missing bomber found after 80 years
Surprised to know the identity of the Russian missile debris 'hunter'
Australia releases chemical composition data of nearly 1 million stars
NASA shuts down plasma device to save spacecraft 20.5 billion kilometers away
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