Chimps show contagious yawning in older infants study
Researchers tested 33 orphaned chimps in Sierra Leone finding yawning contagion strongest in older juveniles toward both adoptive mother and researchers. The work, published in PLOS One, notes limited response from infant chimps.
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Obama to nominate Jeh Johnson as homeland security chief
President Obama plans to nominate former top Pentagon lawyer Jeh Johnson for secretary of homeland security to succeed Janet Napolitano. Johnson, praised as a qualified national security leader, helped reform military commissions at Guantanamo Bay and co authored the repeal of don't ask don't tell.
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Attacks across Iraq kill 59 including Shabak village bomber
Sunni Islamist militants linked to al Qaida pursue escalating violence as 59 die in Iraq. Ten bombs strike Baghdad districts killing 44, including children near Sadr City. In Nineveh a truck bomber targets Shabak villagers, killing at least 15.
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Air pollution classified as leading cancer cause by IARC
The World Health Organization cancer agency IARC labeled air pollution a Group 1 human carcinogen. It cited 2010 global lung cancer deaths at about 223,000 and evidence linking pollution to bladder cancer. IARC states exposure levels vary, but risk mirrors secondhand smoke and affects all regions.
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O'Hare Adds Runway to Cut Delays and Boost Flights
Chicago O'Hare International Airport opened a new 10,800 foot runway as part of an $8 billion modernization. The move aims to cut delays by about half and add nearly 90,000 annual flights, with six east west and two crosswind runways planned. The Group VI capable strip will handle aircraft like the 747-8 and A380, improving operations in bad weather and expanding potential routes.
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