Animals that eat other animals are called what

 carnivores .

   Animals who eat other animals are called   carnivores  .

Note:  This would be the most precise answer.

Animals who eat BOTH plants AND animals are called   omnivores  .  
       As such, since omnivores eats BOTH plants AND animals; an omnivore IS an example of  an animal that eats other animals.  

But the correct answer you are looking for is:  omnivores .