Explanation:
In my view, all factors are equally responsible for this.
Ungulate refers to the large, diverse group of mammals which use the tip of their toes to support their whole body weight while moving. They are divided into two, which are odd toe and even toe ungulates.
Even toe ungulates are those mammals whose weight are supported equally by their third and fourth toes while they are moving. Examples of such animals are cattle, pig, giraffe, camel, etc.<span />
