We evaluated the potential effects of homoplasy, ancestral polymorphism, and hybridization as obstacles to resolving phylogenetic relationships within Nomonyx-Oxyura stiff-tailed ducks (Oxyurinae; ...

Comparative systematic studies may use different sets of data or different sets of taxa to evaluate the quality of phylogenetic data and phylogenetic hypotheses based on levels of homoplasy as implied ...

With the genetics of so many organisms that have different traits yet to study, and with the techniques for gathering full sets of genetic information from organisms rapidly evolving, the "forest" of ...

An ancient reptile has found its rightful place on the family tree, far from a fish-eating crocodile it so closely resembles. The thoracosaur — a dinosaur-era reptile — and the Indian gharial Gavialis ...