Borophagine dogs

These were monstrous, they had a bite force even greater than hyenas. They crushed teeth,skulls, even ribcages. They could eat anything on a carcass from teeth to hair. You wouldn't want to mess with one of these guys. Here's how you make an apex predator. 1. Intelligence these guys were clever able to plan and execute. 2. Vision it had depth perception able to judge distances and see for miles. 3. Hearing one thing crucial to mammals is hearing, prey or predator you need hearing in this case it often heard it's prey before seeing it. 4. Smell able to smell fresh tracks and clear out any hidden prey such as rabbits. 5. Bite force it had a bite force of two thousand pounds per square inch. It went extinct dew to a changing climate while the pliocene was warm. It lived through seasons warm summers to cold winters the grasslands it relied on turned to open forest and lost ground to more modern carnivores like hyenas but several archaic groups survived like the sabre toothed cats and fast running bears.