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351.volcano.und.nodak.edu56500
352.www.agrisalon.com56400
353.www.lenntech.com56300
354.www.chemie.fu-berlin.de56300
355.www.uea.org56200
356.www.astroseti.org56100
357.www.gfz-potsdam.de55900
358.www.school-scout.de55700
359.www.itk.ntnu.no55400
360.www.ird.fr55300
361.www.disclaimer.de54900
362.www.science.uva.nl54700
363.www.howstuffworks.com54000
364.www.hec.unil.ch53900
365.www.rspb.org.uk53700
366.www.boku.ac.at53700
367.www.nhm.uio.no53700
368.www.grain.org53200
369.www.astrobio.net53200
370.www.quackwatch.org52700
371.www.cpc.ncep.noaa.gov52500
372.www.Sigma-Aldrich.com52300
373.www.elektronik-kompendium.de52300
374.www.unfccc.int52100
375.herbarivirtual.uib.es51700
376.www.discover.com51600
377.www.pro-physik.de51500
378.www.retsinfo.dk51500
379.www.seo.org51300
380.www.barrameda.com.ar51000
381.www.forskning.no50800
382.www.cadence.com50500
383.www.science.org.au50500
384.www.binoculars.com50400
385.www.din.de50100
386.www.fnal.gov49900
387.www.wsl.ch49900
388.www.imf.au.dk49900
389.www.esf.org49700
390.www.niaes.affrc.go.jp49600
391.www.rws-verlag.de49500
392.www.queendom.com49300
393.www.actualicese.com49100
394.www.ti.com48900
395.www.gehealthcare.com48900
396.www.gsmworld.com48600
397.www.globalgeografia.com48600
398.noorderlicht.vpro.nl48100
399.www.techfak.uni-bielefeld.de47700
400.www.law.kuleuven.ac.be47700
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372. www.Sigma-Aldrich.com

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More evidence that flies sleep like people [Subscriber Only]
A brain chemical puts fruit flies to sleep.
sciencenews.org
Observatory: Prevalence of Bacteria in Making Snowflakes Is Seen as Widespread
Scientists have known about bacteria’s role in ice nucleation for 40 years, but not how common it is.
nytimes.com
Holding up [Subscriber Only]
New software pinpoints the weak spots in Michelangelo's David.
sciencenews.org
Observatory: Even by Parasite Standards, These Worms Stand Out
The tiny nematode worm makes its host, a tropical ant, look like a bit of fruit, which in turn makes them enticing to birds.
nytimes.com
Evolution and Darwin
Descent with modification was an incomplete theory based on decades of meticulous observation and endless questioning ... and it changed the world, explains Tim Radford
guardian.co.uk