15 Bizarre Ways Marine Life Uses Sound, Light, and Electricity to Communicate

1. Dolphins’ Signature Whistles

Dolphins use individual signature whistles akin to names, allowing them to recognize each other in vast ocean spaces. (nationalgeographic.com) Researchers compare these whistles to human language’s individual names, facilitating identity and group cohesion. Studies have shown dolphins can even mimic each other’s unique calls. (pubmed.ncbi.nlm.nih.gov)