Screech rhino
The screech rhino was a massive alien animal that could weigh up to 3,000 tons. 

In 2371, when Jadzia Dax was manipulating the 's communications holo-filter, so that Benjamin Sisko would look like a Kobheerian captain to an approaching Cardassian ship, she said, she could also make his com image look like a 3,000-ton screech rhino, if he so desired. ()

de:Rhinozeros
Animals