Figure 5 a, b in The giant salamanders (Cryptobranchidae): Part A. palaeontology, phylogeny, genetics, and morphology

Figure 5 a, b. Taking tissue samples from tail clips (Image: Amy McMillan) or blood samples (Image: Jeff Briggler) enables conservation geneticists to assess an individual's relationship to other individual cryptobranchids and the relationship of its population to other populations of the same species.