Video from a suburb of Argentina’s capital of Buenos Aires shows a bright red waterway. The area has multiple tanneries that ...

"We have never seen it like this." Residents sound alarm after local river turns concerning color: 'Looks like a stream of ...

This not only changes the color of a river, but also provides a more comfortable environment for Anopheles darlingi, the main mosquito species that transmits malaria in Brazil. So what are the ...