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EntertainmentDiscovered 'skull altar' more than 1,000 years old in a cave in Mexico
About 150 toothless skulls have been found in a cave in the state of Chiapas, most likely victims of ancient sacrificial rituals.Another mystery of the sacred Mexican temple challenges the scientific world
Recently, Mexican scientists discovered for the first time an almost complete fossil of a starfish at the world famous Aztec temple in Mexico City.
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Can carp live 10 years in a tank without feeding?
Why do Italy and Switzerland have to redraw the border?
Japanese bullet train accident-free for 60 years
The world's most crowded apartment building: Can accommodate up to 30,000 people, the view inside is overwhelming
World's oldest wine jar contains cremated human bones
America catches strange signal from 1.3 billion light years away from Earth
Two black holes closest to Earth discovered, of a kind never seen before
Solar sails help spacecraft reach Mars in 26 days
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