The fourth set of free creatures from Content Paradise. They’re rigged, but there are no animations. For the higher-poly animals you may need the DAZ Game Developer Kit to get them out of DAZ Studio as a decimated FBX, then 3DXChange 4 Pro to get the FBX into iClone.
The Chicken, Butterfly and Shark look the most useful. The Frilled Neck Lizard, standing, could possibly be re-textured as a generic alien creature?