Take a Look at a 1948 Scientist's Fish Drawings 

Donald Erdman was a scientific aide in the Division of Fishes, United States National Museum (later the National Museum of Natural History) from 1947 to 1950. In 1948, Erdman was part of a fisheries survey of the Persian Gulf and Red Sea under the Arabian American Oil Company. The Smithsonian has digitized his notes… » 4/03/15 12:30am 4/03/15 12:30am

Farmed Salmon Is Dyed From Gray To Pink So Consumers Won't Freak Out 

Wild salmon are pink (or pinkish-orange, depending on geography) for the same reason flamingos are pink: their diets, which are heavy in krill and shrimp. But farm-raised salmon are fed a diet that renders them gray... or it would, if they weren't carefully "pigmented" to transform into more appetizing hues. » 3/16/15 10:40am 3/16/15 10:40am