Why does it always seem to surprise researchers to find out that even in prehistoric times people moved around and engaged in trade?
Can Dogs See in Ultraviolet [yes they can] https://www.psychologytoday.com/us/blog/canine-corner/201604/can-dogs-see-in-ultraviolet
Dogs are able to sense heat through infrared sensors in their nose: Study https://m.republicworld.com/technology-news/science/dogs-are-able-to-sense-heat-through-infrared-sensors-in-their-nose-study.html
“Dog DNA reveals ancient trade network connecting the Arctic to the outside world”
So that’s where the Lost Tribe ended up.
Apparently he never owned a beagle.