As monarch butterflies are beginning their epic migration from Canada and the U.S. to Mexico for the winter, concerns about the drastic rate at which they're disappearing from the landscape have led environmental and health organizations to petition the government for federal protection. This week, the Center for Biological Diversity, Center for Food Safety, Xerces Society and monarch scientist Dr. Lincoln Brower filed a legal petition with the U.S. Fish and Wildlife Service seeking protection for monarchs under the Endangered Species Act.
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In California's Death Valley, a geological phenomenon exists. Sailing stones, or moving rocks can be observed on the valley floor inscribing long trails on the ground without human or animal intervention. For over 60 years of observations, no one has been able to uncover the mystery of what is actually pushing these stones across the sand. That is, until now.
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A yawn is defined as a reflex act of opening one's mouth and inhaling deeply. We yawn most often when we are tired or when we're bored. But we also always yawn when we see someone else doing it. Why? People say we can't help it - it's contagious! But what really triggers this involuntary tendency? According to studies, yawning when others do is a sign of empathy and a form of social bonding. And believe it or not, we're not the only species to exhibit these contagious behaviors. A new study published today in the journal PLOS ONE shows that wolves may also be susceptible to yawn contagion.
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Más y más personas están viviendo en ciudades de los Estados Unidos. Son grandes lugares para vivir, emocionantes, con buenos puestos de trabajo, una gran vida nocturna, pero también esto conlleva una alta contaminación y baja calidad del aire. Sin embargo, estos problemas están mejorando. Los esfuerzos para hacer ciudades habitables sin el uso de vehículos están dando sus frutos. La inclusión de carriles para bicicletas, bicicletas públicas y los esfuerzos para reducir el tráfico de automóviles y el tráfico están ayudando a mejorar la calidad del aire en las ciudades. La Agencia de Protección Ambiental de Estados Unidos (EPA) publicó esta semana ...
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A newly-exposed report by Diablo Canyon's lead nuclear inspector shows that the twin reactors are unsafe, writes Karl Grossman. An earthquake on nearby geological faults could trigger a Fukushima-scale accident causing 10,000 early fatalities. The owner's response? Apply to extend the site's operation for another 20 years. As aftershocks of the 6.0 Napa earthquake that occurred Sunday in California continued, the Associated Press revealed a secret government report pointing to major earthquake vulnerabilities at the Diablo Canyon nuclear plants which are a little more than 200 miles away and sitting amid a webwork of earthquake faults.
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Un fuerte terremoto sacudió el valle de Napa el pasado domingo y el Servicio Geológico de los Estados Unidos ha proporcionado un resumen detallado del terremoto y de la posibilidad de dos fuertes réplicas así como la remota posibilidad de una réplica aún más fuerte que el mismo terremoto (de 6.0 grados de magnitud). El terremoto se produjo en una franja de terreno de 70 km de ancho (44 millas) localizado en las grandes fallas del sistema de La Falla de San Andrés que limita
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