In fact, according to the Skoll Foundation, these rats have already returned 1.3 million square meters of suspected minefields to original populations in Mozambique (businessinsider.com)
Finally, original population substructure and subsequent processes of genetic drift and founder effects can introduce errors into the estimation of coalescence dates of mitochondrial and Y chromosome haplogroups [18]. (journals.plos.org)
In contrast, estimates from multilocus genetic data are consistent with a much higher original population size (78,000 — 116,000 individuals)[5]. (journals.plos.org)