Meet Candiru Asu, the most feared scavenger in the Amazonian waters, famed for gorging meat from the inside out. See this footage as a swarm punch a hole inside a dead fish and proceed to eat the carcass from inside out. This researcher claims they look like maggots as they try to attack his diving suit. Can these ferocious animals beat the infamous piranah to be hailed the true monsters of the Amazon?