Lambert M. SurhoneISBN: 978-3-6399-9909-9;
Pacu (Portuguese pronunciation: [pa?ku]) is a common name used erroneously and generally to refer to several species of South American freshwater fish that are related to the piranha.They are omnivorous. Pacu and piranha have similar teeth, although the difference is jaw alignments; piranha have pointed, razor-sharp teeth in a pronounced underbite, whereas pacu have squarer, straighter teeth in a less severe underbite, or a slight overbite. Additionally, full-grown pacu are much larger than piranha, reaching up to 30 kg (60 pounds) in weight, in the wild.
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