Science
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![[:es]Galloping sea lions could inspire land-sea robots[:]](https://katedra.eus/app/uploads/2021/01/010420-sea-lion-thumbnail-playbutton.png)
[:es]Galloping sea lions could inspire land-sea robots[:]
Some robots swim and dive through the water; others scurry across the land. Now, researchers want to build a machine that can do both. Their inspiration? The California sea lion.
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![[:es]How voracious antlions engineer deadly sand traps[:]](https://katedra.eus/app/uploads/2020/12/antilon-playbutton.png)
[:es]How voracious antlions engineer deadly sand traps[:]
You’d never know it by looking at the dragonflylike adult antlion, but its wingless larvae—fingernail-size eating machines with huge, poison-filled jaws—build deadly sand traps to capture tiny insects, including ants. […]
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![[:es]Slowdown in plate tectonics may have led to Earth’s ice sheets[:]](https://katedra.eus/app/uploads/2020/12/ca_0101NID_Mid_Atlantic_Ridge_online.jpg)
[:es]Slowdown in plate tectonics may have led to Earth’s ice sheets[:]
In seafloor trenches around the world, slabs of old ocean crust fall in slow motion into the mantle, while fresh slabs are built at midocean ridges, where magma emerges at […]
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![[:es]Watch an AI robot walk with a broken leg, thanks to a brain that never stops learning[:]](https://katedra.eus/app/uploads/2020/12/hebbian-networks-playbutton_0.png)
[:es]Watch an AI robot walk with a broken leg, thanks to a brain that never stops learning[:]
Watch the two simulated robots above, and you’ll notice a big difference. Even though both of their “brains” have evolved over 300 generations to allow them to walk, only one […]
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![[:es]Shrine of decapitated heads suggests violence against foreigners in ancient Mexico[:]](https://katedra.eus/app/uploads/2020/12/teo_1280p.jpg)
[:es]Shrine of decapitated heads suggests violence against foreigners in ancient Mexico[:]
Fifteen hundred years ago, Mexico’s Teotihuacan was a multicultural metropolis, enlivened by the diverse dress, foods, and dialects of its immigrant groups. Artifacts show the city of more than 100,000 […]
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![[:es]Geoengineers inch closer to Sun-dimming balloon test[:]](https://katedra.eus/app/uploads/2020/12/atmosphere_1280p.jpg)
[:es]Geoengineers inch closer to Sun-dimming balloon test[:]
For years, the controversial idea of solar geoengineering—lofting long-lived reflective particles into the upper atmosphere to block sunlight and diminish global warming—has been theoretical. It’s starting to get real: Today, […]
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![[:es]Protein found in fingertip ‘capsules’ may be critical to our sense of touch[:]](https://katedra.eus/app/uploads/2020/12/touch_1280p.jpg)
[:es]Protein found in fingertip ‘capsules’ may be critical to our sense of touch[:]
Can you tell the difference between high – and low –thread-count sheets just by touching them? Thank usherin, a protein found in a mysterious structure in your fingertips. Usherin also […]

![[:es]After decades of effort, scientists are finally seeing black holes—or are they?[:]](https://katedra.eus/app/uploads/2021/01/cs_0108_NF_Blackhole_2.jpg)
![[:es]Psychology’s replication crisis inspires ecologists to push for more reliable research[:]](https://katedra.eus/app/uploads/2020/12/ca_1211NID_Blue_Tit_Bird_online.jpg)