Blood Falls in Antarctica flows unpredictably with iron-rich, salty water. Microbes inside survive without sunlight.

Blood clots form in response to signals from the lungs of cancer patients -- not from other organ sites, as previously thought -- according to a preclinical study. Clots are the second-leading cause ...

The Sarandí canal in Argentina turned blood red last week. Officials suspect a toxic substance used in dyes has entered the ...

A river in a suburb of the Argentinian capital turned blood-red on Thursday, raising fears of industrial pollution in the ...

English musician Pete Doherty is presenting a survey of his infamous "blood paintings" and new art in a Berlin exhibition.

A stream winding through a populous area on the outskirts of Buenos Aires has turned crimson red, sparking fears of ...