Darwin officially published his theories in On the Origin of the Species in 1859. He knew his views would be controversial, especially with those who believed heavily in religion. His first edition of the book did not talk much about human evolution, but did hypothesize that there was a common ancestor for all life.
Dietician and nutritionist. It is safe to eat two or three serves of canned or fresh tuna or salmon a week. While pregnant women are advised to avoid eating a lot of fish that is high in mercury, tuna is generally considered to be low in mercury.f you usually enjoy eating a lot of fish, try to balance out the types of fish you have. Combine fresh tuna, sardines, pilchards and trout, with fish that have lower levels of pollutants, such as haddock, red snapper, ling or flathead. Read our full article on eating fish during pregnancy.
Men can safely consume 14.5 ounces of light tuna per week, and women can consume 12.5 ounces per week -- unless they are pregnant in which case it is best to avoid eating tuna.