Cuando llega el otoño, las mariposas monarca emprenden el mayor viaje de sus vidas. Vuelan entre Canadá y México. Más de 4.000 kilómetros que repiten de forma instintiva generación tras generación y que parecen impresos en su material genético. La evolución les ha regalado una brújula interna que utiliza el transcurso del tiempo y la posición del Sol para dirigirse hacia el suroeste. Ahora un grupo de investigadores ha conseguido crear un modelo matemático, publicado por la revista Cell Reports, que reproduce los cálculos internos que lleva a cabo el cerebro de estos animales.
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Para resolver este misterio, Shlizerman y Daniel Forger, matemático aplicado de la Universidad de Michigan, han desarrollado un modelo de ecuaciones que explica la actividad neuronal de estas mariposas. El resultado ha sido satisfactorio para Forger: “Examinamos en detalle diferentes comportamientos durante el vuelo de las mariposas y el modelo fue capaz de reproducirlos. Es emocionante”.
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