You’re looking at the Babirusa, also known as the deer pig of Indonesia.And yes, those tusks really grow through the top of its snout and curve backward toward its skull. They’re actually upper canine teeth that erupt through the skin. In some cases, if they’re not worn down or broken, the tusks can grow long enough to pierce the animal’s own skull. Why? Evolution isn't always elegant. Scientists believe the tusks are used for display in mating rituals rather than combat—think of them more as st