Huge Anaconda, big enough to eat a man, is caught on film puking a cow. This Huge Anaconda, big enough to eat a man, is caught on film puking a cow. This snake is so big it could swallow a human. It's a green anaconda which are the biggest snake species in the world according to sheer mass. They are found in Brazil and are a top predator in the wild jungles and rivers across the country. is so big it could swallow a human. It's a green anaconda which are the biggest snake species in the world according to sheer mass. They are found in Brazil and are a top predator in the wild jungles and rivers across the country.