Sound production in wild Mediterranean blonde ray Raja brachyura.

The article discusses the discovery of active sound production in the wild Mediterranean blonde ray Raja brachyura, a type of elasmobranch. The sound produced by the blonde ray consists of a series of high-pitched pulses and is similar to sounds produced by other elasmobranch species. This finding sheds light on the communication and behavioral aspects of elasmobranchs, highlighting the importance of further research in this area. [Extracted from the article]