The growing problem of the Escobar hippos

Notorious drug lord Pablo Escobar has left the Colombian countryside a strange legacy.

On his jungle ranch 200 miles northwest of Bogota in the 1980s, Escobar built himself a small zoo and smuggled in elephants, giraffes and - among other things- four hippos. When the ranch was seized in the 1990s all the animals were impounded, except the hippos.

The hippos thrived and bred well. Now nobody knows for sure how many of them there are or what to do with them. Local environmental chiefs estimate between 50-60, with most still living in the lake at the ranch.

In 2008, National Geographic filmed the Escobar hippos.