2015年Scientific American's Six

If you are lost, you need a map and a compass. The map pinpoints where you are and the compass orients you in the right direction. Migratory birds, on the other hand, can traverseentire hemispheres and end up just a couple of miles from where they br

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Wilder protected areas get eight billion visitors a year, and that's just on land. Underwater reserves? add a million to the tally, which, considering these are protected areas, seems like an insane number of people. It isn't insane. Dane Blumstaine,

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学英语单词
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a dump
acetodexamide
act of rape
agrym
anticlog
antilogous
beaver breathers
bierlin
blankoff pressure
cardholder certificate
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Clethra nanchuanensis
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counterflow screen
crimes against humanity
crowberry family
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darned
day book cash journal
decoy discrimination
Diospyros maclurei
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eusantonine
file group
fixed-point decimal
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genus canavalias
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guidetti
Haselmayer
have no presence
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homers
Hubble's Nebula(NGC 2261)
hyper Graeco-Latin square
index sensing
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initial incidence angle
intensity correlation!
inventeth
kish lock
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letter of information
light-heartedly
liquid-fuel engine
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Mapaya
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name of spooler bond unit
Nicholson, Sir Francis
NMMA
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Weinfelden
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yeff