Articles with the keyword: 


National parks spark population growth! ...human populations
Darkfrog submitted, created time 4 months 2 weeks (sciencenow.sciencemag.org)
Despite what critics, proponents, common sense and a proportionate number of the planets 8-balls would have told us, national parks in developing countries are GOOD for people but BAD for animals.
It doesn't make sense on the surface. Opponents of national parks in poor areas have argued that people shouldn't be barred access to traditional hunting grounds, but demographic studies show that human population growth near park borders increases faster than in other places--it implies that people are moving there for the jobs and aid that go hand-in-hand with park placement 
Eric wu submitted, created time 1 year 5 days (sciencenow.sciencemag.org)
In colonial America, slaves from west Africa made many a plantation owner rich by growing a particular high-quality variety of rice. Now, genetic research suggests the slaves not only supplied the labor and the agricultural skills they'd gained in their home countries but also may have brought the valuable crop with them. 
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