Researchers have raised concerns about the impact of ocean acidification on shark teeth, warning that at least one shark species could develop teeth full of holes and cracks within the next 300 years. German scientists have highlighted the potential for sharks to lose their teeth as a consequence of increasing acidification in ocean waters. This phenomenon is linked to accelerated acidification trends observed in deeper Pacific waters. The degradation of shark teeth poses risks to marine ecosystems, given sharks' role as apex predators. The findings underscore broader environmental challenges associated with changing ocean chemistry.