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Science  26 Sep 2014:
Vol. 345, Issue 6204, pp. 1544-1546
DOI: 10.1126/science.345.6204.1544

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In science news around the world, the People's Climate March in New York City draws a crowd of almost 400,000, a measles immunization campaign in Syria causes the deaths of 15 children, NASA's MAVEN spacecraft enters orbit around Mars, Australian public health experts are sounding alarms over a record number of new cases of syphilis and a rise in viral hepatitis deaths, and dwindling populations of the Okinawa dugong may be threatened by a planned new U.S. Marine Corps air base. Also, the nutrition content of leaves in a tropical rainforest is decreasing due to climate change, potentially causing trouble for leaf-eating monkeys. And the 2014 Ig Nobel award winners include researchers investigating pareidolia—seeing nonexistent objects such as faces in a random signal—and a team of scientists who studied dogs' ability to detect Earth's magnetic field while pooping.