Contrary to popular belief, piranhas do not replace their sharp teeth. Their formidable dentition is designed for a lifetime of hunting and scavenging. Similar to other members of the Characidae family, piranha teeth grow continuously throughout their life. As older teeth wear down or break off, new teeth emerge to take their place, maintaining their formidable biting power. This continuous tooth growth ensures that piranhas can effectively capture and consume prey without experiencing significant dental issues.