Science
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![[:es]A lopsided face helps this eyeless cave fish navigate[:]](https://katedra.eus/app/uploads/2019/01/cavefish_16x9.jpg)
[:es]A lopsided face helps this eyeless cave fish navigate[:]
The pinnacle of beauty to most people is a symmetrical face, one without any major left-right differences. But for blind Mexican cavefish (Astyanax mexicanus), asymmetry may be a lifesaver. That’s […]
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![[:es]Leafcutter ant ‘compost piles’ produce potent greenhouse gases[:]](https://katedra.eus/app/uploads/2019/01/ant_16x9.jpg)
[:es]Leafcutter ant ‘compost piles’ produce potent greenhouse gases[:]
Leafcutter ants are known for producing lots of trash. In fact, the species Atta colombica (above) can create bathtub-size, thigh-high mounds of refuse that contain not only leaves, but also […]
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[:es]Leafcutter ant ‘compost piles’ produce potent greenhouse gases[:]
Leafcutter ants are known for producing lots of trash. In fact, the species Atta colombica (above) can create bathtub-size, thigh-high mounds of refuse that contain not only leaves, but also […]
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[:es]Leafcutter ant ‘compost piles’ produce potent greenhouse gases[:]
Leafcutter ants are known for producing lots of trash. In fact, the species Atta colombica (above) can create bathtub-size, thigh-high mounds of refuse that contain not only leaves, but also […]
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![[:es]Middle East fossils push back origin of key plant groups millions of years[:]](https://katedra.eus/app/uploads/2018/12/Lead-picture_16x9.jpg)
[:es]Middle East fossils push back origin of key plant groups millions of years[:]
Paleobotanists exploring a site near the Dead Sea have unearthed a startling connection between today’s conifer forests in the Southern Hemisphere and an unimaginably distant time torn apart by a […]
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![[:es]Discovery of recent Antarctic ice sheet collapse raises fears of a new global flood[:]](https://katedra.eus/app/uploads/2018/12/ca_1221NID_Pine_Island_Glacier_online.jpg)
[:es]Discovery of recent Antarctic ice sheet collapse raises fears of a new global flood[:]
Some 125,000 years ago, during the last brief warm period between ice ages, Earth was awash. Temperatures during this time, called the Eemian, were barely higher than in today’s greenhouse-warmed […]
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![[:es]Martian methane—spotted in 2004—has mysteriously vanished[:]](https://katedra.eus/app/uploads/2018/12/tgo2_16x9.jpg)
[:es]Martian methane—spotted in 2004—has mysteriously vanished[:]
Mars’s methane has gone missing. Scientists first detected traces of the gas—a critical indicator of life on Earth—in the planet’s atmosphere decades ago. But today, researchers reported that a European […]
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![[:es]Assassin fly babies have ‘Swiss army knife’ mouths[:]](https://katedra.eus/app/uploads/2018/12/fly_16x9_1.jpg)
[:es]Assassin fly babies have ‘Swiss army knife’ mouths[:]
Australia’s splendid assassin fly (Blepharotes splendidissimus) earns its fearsome moniker. About the size of a bottle cap and sporting a similar metallic luster, they ambush butterflies and dragonflies in midair, […]
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![[:es]Cannibalistic tadpoles and matricidal worms point to a powerful new helper for evolution[:]](https://katedra.eus/app/uploads/2018/11/Cs-cannibalizing-metamorph_300_1280x720.jpg)
[:es]Cannibalistic tadpoles and matricidal worms point to a powerful new helper for evolution[:]
Growing up in South Texas, David Pfennig was fascinated by cannibalistic tadpoles. When summer storms soak the normally dry plains, spadefoot toads emerge from their burrows to lay eggs in […]