Vertebrate species,for example, decreased by nearly one-third between nineteen seventy and two thousand six.
VOA: special.2010.05.25
Millions of humans affected by Alzheimer's disease, other species don't get Alzheimer's disease.
上百万人受阿尔茨海默氏症的侵扰,其它物种并不会得这种病
The "Origin of Species" was praised by many scientists.
VOA: special.2009.02.25
Ray Oelking is selling soup made with crawfish - a freshwater species that is unaffected by the spill so far.
VOA: standard.2010.06.01
Malaria is caused by a parasite transmitted by a certain species of mosquito.
VOA: standard.2010.04.23
The extent of illegal logging varies widely by exporting country and species.
VOA: standard.2010.05.28
Later this month, a proposal to ban the international trade of bluefin tuna will be debated by almost 200 countries that signed the UN convention on endangered species.
VOA: standard.2010.03.04
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