Scientists find rig sharks make high-pitched clicks, challenging views on shark communication.

Scientists have discovered that rig sharks, indigenous to New Zealand's coastal waters, can produce high-pitched clicking sounds by snapping their teeth, challenging the belief that sharks are silent. Recorded in lab settings, the clicks, which are loud and sharp, may serve as distress signals or forms of aggression. Further research is needed to understand their full purpose and if other shark species make similar sounds.