Rodians are natural hunters
I would have to say the mandalorains simply because of their culture and most of the more infamous bounty hunters are mando's
and about the Taung where alive around 3,963 BBY
this is taken from a web site i found "The Taungs and the thirteen native Human nations, the Battalions of Zhell, eventually battled for control of Coruscant. Though the Zhell were nearly exterminated in a volcanic explosion, they managed to drive the Taungs from Coruscant. Due to the two years of darkness caused by the ash, the Taungs named themselves the Warriors of the Shadow (Dha Werda Verda).
The Taungs fled to Roon, where they remained for thousands of years, until, under the leadership of the legendary Mandalore the First, the Taungs conquered another world which they renamed in honor of their leader, Mandalore. The species as a whole then also took the name, becoming the Mandalorians (or Mando'ade in their native Mando'a).
Eventually, the Mandalorian species became extinct. Much like the Sith species which gave rise to the Sith Order, the name "Mandalorian" became associated with a multi-species organization of warrior clans, who, regardless of species, adhered to the tenets of the Mandalorians. These Mandalorians, who were mostly baseline Humans, held the legacy of the Taungs in high regard."
I highly doubt it was possible for a Taung and a human to produce offspirng, although i do not doubt that Taung would have adopted human children as their own and into their clans