• Obama is one of five new species of darter fish discovered by researchers • The freshwater fish has distinctive bright orange and blue colours and is generally found in fast-flowing rivers around America • Other species named after Teddy Roosevelt, Jimmy Carter, Bill Clinton and vice president Al Gore A new species of fish has been named after President Barack Obama by the researchers who discovered it. The freshwater fish has distinctive bright orange and blue colours and is generally found in fast-flowing rivers around America. It is one of five new species of darter - the smallest member...