Why are some rock formations and animals found on more than one continent? The explanation dates back to the Ice Age.
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Caption 24 [en]: is a good indication that there must have been a land bridge connecting the two continents Caption 24 [en]: is a good indication that there must have been a land bridge connecting the two continents
They can flow like a liquid and bounce back like a solid. Masses of fire ants show a duality that intrigues physicists.
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Caption 23 [en]: When the ants turn themselves into a bridge, they can repair breaks. Caption 23 [en]: When the ants turn themselves into a bridge, they can repair breaks.