From four to nearly 200, Colombia's "cocaine hippos" have been damaging the ecosystem of the Magdalena River for over four decades.

Colombian officials on Monday authorized a plan to cull dozens of hippos roaming freely through a region in the center of the country, where they threaten villagers and displace native species years ...

Anant Ambani, the son of tycoon Mukesh Ambani, said he formally requested the Colombian government to stay a decision to kill the animals.

PUERTO TRIUNFO, Colombia — Along the Magdalena River, one of Colombia’s primary arteries, fishermen move with wary precision. From the silty, tea-colored current, hippopotamuses can surface without ...

WHEN night falls in the small Colombian village of Doradal, the quiet is broken by the wet, heavy thuds of the town's 1,360kg ...