Cow's body so heavy cow's legs so thin how to support the

The cow's body so heavy cow legs so thin how to support? The cow's body so heavy but the construction of the cow's leg is very special, cow bone hardness, cow leg support is very strong, four cow legs were supporting four points, strong drag the cow's body, although the cow's leg is thin cow hoof tendon elastic full load-bearing strong, four corners of the support uniformly share the weight, very good support for a good big cow's body!