less polys?

Say I have a model, like of a human for example, that has way to many triangles. Is there any way to get some of the triangles to go away?
And are polygons related to triangles in a model?

In b3d, a polygon is a triangle. The term could however refer to a square, pentagon, hexagon etc.
To reduce the amount of triangles, I think you need a polygon reduction tool/modifier. This is usually done in a 3d editor.

Milkshape3d has a polygon reduction tool, or at least the version I have does. (1.7.4)

There's also a standalone tool named ProgMesh that may be downloaded.

Thanks. One more question, is it possible to make a program to do this in blitz and save the model as a 3ds or b3d?

There is a routine in the archives: (I didn't try it)
http://www.blitzbasic.com/codearcs/codearcs.php?code=1285