Piranha, also called caribe or piraya, any of more than 60 species of razor-toothed carnivorous fish of South American rivers and lakes, with a somewhat exaggerated reputation for ferocity. They are known for their sharp teeth, powerful jaws, and voracious appetite for meat. Some species, however, are scavengers or feed on plant material.
The movie is not to answer the question it is just an illustration to see the piranhas eat.
This question I created, I used information from many sources, it is about properties of piranhas, and this specific question is about what piranhas eat.
About the place: I mentioned in the question: " : "… fish of South American rivers and lakes", and I wrote in the description of the question: Piranhas range from northern Argentina to Colombia, but they are most diverse in the Amazon River, where 20 different species are found.
So the place is
PA-257, Santarém - PA, Brazil
About the capital letter, if you mean P in the word piranha, it should not be capital, like using the word fish in the middle of a sentence.
Your question was presented properly.
The movie was an excellent vivid explanation of the question. I'm pleased to
inform you that it helped me to answer the question correctly. The only
corrective comment I have, is for you to add the location of the question whether
it's from PISA or TIMS.