Today we mark the birth anniversary of Teddy Roosevelt with a look at some language associated with our twenty-sixth president.

Just a few months before winning his first presidential election, Roosevelt assured an associate that he was "as strong as a bull moose." The moose image went public when Roosevelt's Progressive party adopted it as an emblem, Bull Moose had become a nickname for a follower of Roosevelt's third (and failed) presidential bid.

Bull Moose wasn't the only political phrase associated with Teddy Roosevelt. In his Autobiography, The wrote about "the lunatic fringe in all reform movements." That reference to the extreme, eccentric, or fanatical members of a political or social movement is the earliest known use of the expression lunatic fringe.

Roosevelt was an avid outdoorsman, and his name was also attached to both beast and fish. The name of the rare Roosevelt elk, the largest of a species of gregarious American elk, honors him, as does the Roosevelt trout, a brilliantly colored fish better known as the golden trout.