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Can northern fish understand the southern ‘cod love song’?

Which do you prefer: the sounds of a northern cod or those of its southern counterpart?

Scientists from the University of Exeter are attempting to discover if Cornish cod moving north due to climate change will be able to understand the different ‘accents’ of their Scouse counterparts.

Cod make sounds with their swim bladders to attract mates, and if males are unable to communicate with females with different accents, this could threaten their ability to breed.

Professor Steve Simpson, who is leading the research, described the sound as the “cod love song” which male cod have to get “just right” so that a female will release her eggs.

“The sound relates to how large you are, how loud you are and how healthy you are – so there are individual differences,” he added.

This clip is originally from 5 live Breakfast on Wednesday 5 October 2016.

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