The Sumatran rhino has no known predators other than humans.
They have no known predators, but humans and Donkeys compete for habitat.
Also some other known predators are civets, snakes, and army ants.
Adult Javan rhinos have no known predators other than humans.
The group persuaded the company to remove the Web pages of 7,000 known sexual predators.
The latter species presumably is the only known significant predator of D. margaritatus.
It is the only known predator of the Asian giant hornet.
Their only known predators could not leave water.
They are the only known dipterous predator of marine barnacles.
The only known predators of Bali tigers were humans.