Jonathan tries to convince PhD student Nthabeleng Nhlengethwa that this is really how ecologists sample vegetation. Nthabeleng is unimpressed. In collaboration with Vanessa Ezenwa (Yale) and Danny Govender (SANParks), Nthabeleng will use eDNA from buffalo dung to examine whether buffalo infected with TB shift their dietary preferences. Do sick buffalo self-medicate or do they simply seek out ‘comfort food’?