The research also showed that the fish also tended to lose their natural ... of carbon dioxide were affecting their whole central nervous system.” Munday says around 2.3 billion tonnes of ...

Mercury is another concern when it comes to eating fish. "Bioaccumulation of methylmercury is a concern, because it is toxic, particularly to the central nervous system, and to babies in utero ...

The infamous box jellyfish developed its frighteningly powerful venom to instantly stun or kill prey, like fish and shrimp ... although without a central nervous system, scientists aren’t ...