More later, but for now

Just to clairify:

Archetype:
1.
the original pattern or model from which all things of the same kind are copied or on which they are based; a model or first form; prototype.
2.
(in Jungian psychology) a collectively inherited unconscious idea, pattern of thought, image, etc., universally present in individual psyches.

Stereotype:
1.
a process, now often replaced by more advanced methods, for making metal printing plates by taking a mold of composed type or the like in papier-mâché or other material and then taking from this mold a cast in type metal.
2.
a plate made by this process.
3.
a set form; convention.
4.
Sociology. a simplified and standardized conception or image invested with special meaning and held in common by members of a group: The cowboy and Indian are American stereotypes. –verb (used with object)
5.
to make a stereotype of.
6.
to characterize or regard as a stereotype: The actor has been stereotyped as a villain.
7.
to give a fixed form to.

Regarding the Animal-Lover Archetype: I'm new to this subject, but I think its a combination of the Child-Nature archetype (think Tarzan--close to nature, protective, fully connected to the community of it), the Mother Nature archetype (nurturing, healing, etc.) There's a ton more about them here, and this is a really good book if you're interested.