Sensory biologist Dr Robyn A Grant, from the University of Manchester, said it was "the very first time" hippopotamus ...

The drug lord Pablo Escobar built a private zoo filled with hippos, but things took a dangerous turn when he was shot dead.

From a pygmy hippo to capybaras, Edinburgh Zoo's latest viral additions are helping to keep visitor numbers steady after its pandas returned ...

A 100-year-old stuffed hippo has helped biologists better understand how mammals use their whiskers. Billie, a former resident of London Zoo in the ... and what the animals use them for." ...