上海qq群油压LVS
How to fix Latin America’s homicide problem
In the 1990s, the capital of Colombia’s mountainous Antioquia province Medellin had one of the world...
Open soil science: technology is helping us discover the mysteries under our feet
Have you ever taken the time to stop and consider the dirt under your feet? Leonardo da Vinci said:...
The hidden secrets of insect poop
Insect defecation may not seem like one of the pressing scientific inquiries of our time, but in fac...
‘Cow economics’ are killing India’s working class
When Prime Minister Narendra Modi addressed the Indian parliament for the first time in June 2014, h...
Caught between police and gangs, Rio de Janeiro residents are dying in the line of fire
In Rio de Janeiro, where murder rates this year have soared to their highest levels in a decade, vio...