Welcome! Bella is beautiful indeed!
I was curious if there is a native Brazilian term for stray or street dogs in general. There was an old Brazilian film that I recently watched, Vidas Secas, featuring a small-medium street dog that also seemed to me to have some Basenji-ish features.
But I think a lot of "village dogs" all around the world tend to have this kind of size and build, especially after generations of indiscriminate breeding on the streets or in the wild. Something about physical adaptation and the demands of survival… This is in part why Basenjis are hardy little dogs, right?
My Basenji came into my life when she was about 4 or 5... so a little older than your lady, but still youthful and full of surprises. Thank you for rescuing this girl, and may you both look forward to many happy times together!