A New York Times investigation’s failure to amplify tuna DNA from Subway’s tuna salad sandwiches likely says more about the complexities of identifying processed fish than about the ingredients.
New genomic analyses reveal that piscine orthoreovirus first came to the Pacific in 1989, around the same time that salmon farms in the area started importing Atlantic salmon eggs from Europe.
Stephen Raverty of the Ministry of Agriculture in Canada and Joseph Gaydos of UC Davis speak with The Scientist about their recent study assessing the causes of orca deaths.
Canadian officials are investigating the deaths and implementing regulations to reduce the number of ships that strike the endangered species or snag them in fishing gear.
The adaptation gives better endurance to the Bajau people, known as sea nomads, by increasing spleen size and, in turn, boosting the number of oxygenated red blood cells when diving.