Game Design with Unity3D (Practical Experience II)
Tutorial 2
Mathias Fuchs,

Importing 3D Objects

Unity3D is shipped with a few 3D objects, but in most cases you will want to add your own objects or those that you find on free download sites.

In the screnshot above you can see a 3D model of a sheep in views: top, perspective, front and right.
Whatever modeling software you use, you need to make sure that th geometry of the animal and he texture that is used by the UV-map arrives in Unity3D and is interpreted correctly there. The UV textur looks like the one in the image below and can be downloaded here, together with the model (i.e. the untextured geometry) in different formats.