hippo
Some of the hippos, whose population has grown to about 170, will instead be relocated or euthanized.
The king of the beasts wandered into a South African river and became the subject of a desperate struggle with hippos.
Though researchers have suggested the drug lord's animals may be restoring the local ecosystem, they are still considered an invasive species.
The embattled nyala had tough choices to make in South Africa.
WHAT'S HAPPENING
Researchers said the creatures could be filling the biological role once played by extinct animals like giant llamas.
