On the topic of the land bridge, diversity and movement of mammals from the Miocene thru the Pliocene and Pleistocene, current thought is there was no THE land bridge. There were many times as the glaciers waxed and waned it was possible (but not easy since it would have been ice covered) to migrate on land between Asia and North America-some going east, some west. Making pinning down the exact origin of a species possibly developing concurrently on at least two continents more complicated.
Let alone color patterns within a species even if there were numerous complete, accurately dated skeletons with well preserved hide and hair showing color and pattern, which we donāt have. Rather surprising to some there is still much we donāt know and new information rewrites what we thought we did.
I so hate the pseudo documentaries and their āsort of scienceā passing as serious programming. Between the Mermaids, that Really Big Shark one and the Sasquatch hunters? And the Alien theorists? Guess you can make up whatever you want and sell it as a āDocumentaryā or science based exploration show. Use enough big words and make up a āResearch Foundationā and you are good to go.
I think in this case, the use of āSecretā¦Quest for the Trueā¦ā in the title sounds a little theatrical, perhaps it suggests Appys arrived here with the Knights Templar and the Holy Grail. On a space ship manned by Vikings.