Meet the northern snakehead, a horrifying fish that is an invasive species and can breathe out of water and walk on land—and it's just been spotted in Louisiana for the first time. This fish truly is the stuff of nightmares. According to this National Geographic video, not only can the northern snakehead travel across land and live without water for up to three days, it also has a massive appetite, razor sharp teeth, and snapping jaws that can tear human flesh. — Read the rest