Long after the age of dinosaurs, giants still roam this planet. Engineered to withstand the test of time, these animals have supersized bodies, thick skin, sharp teeth and bad attitudes. This is the world of Africa's giant killers. Hippos, elephants, buffalo and others battle it out to become Africa's deadliest. If they're not being targeted by gangs of lions, hyenas or other predators, then they're fighting among themselves. Sometimes offense is their best defense, and there's nothing more terrifying than watching an enormous peace-loving animal turn on the temper. There will be blood.