Both Darwin, had been a successful physician and naturalist, contributed to Darwin's attitude and efforts toward writing his own ideas on evolution in the book Zoonomia. investigating nature. From Herschel came the balance of His father, Robert Darwin, had also been a successful observation and experiment. From Whewell came the idea physician. Charles remembered his father most fondly, as that successful scientific theories draw from many fields of his mother died when he was only eight years old.
Both the Environmental Protection Agency and the FDA recommend not eating ahi tuna in any amount during pregnancy or while breastfeeding. As an alternative, if you like tuna, choose tuna lower in mercury. Canned light tuna usually contains skipjack tuna, which is low in mercury.
Advertisement - Continue Reading Below. Fish are healthy and loaded with Omega-3 fatty acids -- a key nutrient during pregnancy -- but some fish including tuna, can contain toxic contaminants like mercury, PCBs and dioxins, which have may cause learning problems, breast cancer, or other health problems.