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Do Birds Dream? What new research on the avian brain and REM sleep in birds might reveal about our own dream lives. By Maria Popova Essay Bird Flu Spreads to Dairy Cows U.S. regulators confirmed that sick cattle in Texas, Kansas and possibly in New Mexico contracted avian influenza. They stressed that the nation's milk supply is safe. By Emily Anthes Out There Tras la pista de los denisovanos El ADN ha demostrado que esos humanos ya extintos se extendieron por todo el mundo, desde la fría Siberia hasta el Tíbet, a una gran altitud, quizá incluso en las islas del Pacífico. By Carl Zimmer On the Trail of the Denisovans DNA has shown that the extinct humans thrived around the world, from chilly Siberia to high-altitude Tibet — perhaps even in the Pacific islands. By Carl Zimmer Ensayo Nuevas investigaciones sobre el cerebro de las aves y su sueño REM nos dan pistas sobre la evolución de nuestros propios sueños. By Maria Popova How do champion skaters accomplish their extraordinary jumps and spins? Brain science is uncovering clues. By Pam Belluck Several justices questioned the remedy of applying nationwide restrictions to mifepristone because it would be the first time a court had second-guessed the F.D.A.'s expert judgment on a drug. By Pam BelluckApril 8, 2024 Total Solar Eclipse
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