How to make these physics

i made a animal in my game and and i gave him a rigidbody to give him gravity. My problem is that i have a terrain and if the animals spawns they have to spawn 500 on the y axis so that they are not able to spawn under the map. But if they fell down to ground they dont fall on the foots they fell on the side. What could i do?![alt text][1]

Rigidbody.freezeRotation = true in code, or tick the XYZ checkboxes for “Freeze Rotation” under “Constraints” in the Inspector for the rigidbody component on your animal prefab. Also I gave you a solution to your spawning problem in your other question.