Comment: There is only one science. Scientists continually seek the truth by doing all sorts of tests and experiments as they have done for centuries.  What indigenous people are doing is nothing new in the sense that all science started this  way. Ancient remedies, theories, like the exiting ones of cultures of today,  were and will get tested by science (the tried and tested and universally acknowledged 'scientific method').  Some things will be rejected but some will carry through and get incorporated into science as new processes emerge.  Take Newton's gravitation theory , now superseded by that of  Einstein. Take the new hominid fossils just discovered that probably will change our views on our origins. So there is no need to reject colonial science and accept indigenous.  They essentially end up as one and the same thing  if they pass the tests.