In 40 years of commercial haddock and cod fishing, my husband had only seen one fish that looked like this. He also saw one that looked like a cross between a cod and a pollack.

The year 1968 is when the cod catch peaked, at about 800,000 metric tons, which is just an egregious amount of fish. And cod stocks began to decline after that.

Cod fish use sounds that are similar to a love song to attract a mate, explained British researchers at a science showcase run by the National Environment Research Council (NERC) on Wednesday.