I found the transcript from the documentary. If the age part is true, the rest is not (unless there's difference between our European bred Basenjis and those in Africa):
NARRATOR: Sharing the same curly-tailed trait [as the Akita] is the venerable African Basenji.
DEBBYE TURNER: Basenji is the granddad of ancient dogs. However, they’re not that trainable. They will not do obedience tricks like other breeds.
Come back here.
And here’s an example!
NARRATOR: There is something else very wolf-like about a Basenji…
SOUND OF DOGS HOWLING
NARRATOR: …its yodel.
These breeds reveal much about how dogs may have appeared and acted after they first transitioned from pack hunters to scavengers and provide clues as to why they may have first appealed to humans.
DEBBYE TURNER: You won’t see Basenjis doing tricks, but because of their closeness to their wolf ancestors, they are considered very adept hunters.
Here's the video link. Basenjis mentioned 25 min. into it.
https://www.pbs.org/video/dog-tales-vskr2y/
