You may recall I'd posted thoughts about the book 'Four Fish'. (My puppy ate the book. I was not happy.) One of Paul Greenberg's hypotheses was that by targeting/removing big fishes from fish stocks, humans were genetically selecting for smaller fishes. The 'big' genes are... gone! Fished out. Now scientists are conducting research on this very topic.
Click here to read article.
I hope it's not too late.