If Evolution is true your dog and his elephant are intermediate as a great philosopher pointed out:
If all species are transitional, then there are NO species.
From Aristotle to Darwin and Back Again (1971)
by Etienne Gilson
A reviewer said the following after reading this :
"A more accurate title for Darwin’s book, according to Gilson, would be the Origin of Varieties. Darwin’s use of the word “species,” however, is contradictory. “To say that species are fixed,” Gilson writes, “is tautology; to say that they change is to say that they do not exist, Why does Darwin obstinately say that they transform themselves, rather than saying simply that they do not exist?” (pp. 140-1)"