Phenotypic variation across mammals is extensive and reflects their ecological
diversification into a remarkable range of habitats on every continent and in every ocean …

Animals have diversified into a bewildering variety of morphological forms exploiting a
complex configuration of trophic niches. Their morphological diversity is widely used as an …

Birds are some of the most diverse organisms on Earth, with species inhabiting a wide
variety of niches across every major biome. As such, birds are vital to our understanding of …

The evolution of cetaceans (whales and dolphins) represents one of the most extreme
adaptive transitions known, from terrestrial mammals to a highly specialized aquatic …

Insights into animal behaviour play an increasingly central role in species-focused
conservation practice. However, progress towards incorporating behaviour into regional or …

Factors intrinsic and extrinsic to organisms dictate the course of morphological evolution but
are seldom considered together in comparative analyses. Among vertebrates, squamates …

Characterizing how variation in the tempo and mode of evolution has structured the
phenotypic diversity of extant species is a central goal of macroevolution,–. However …

Birds show tremendous ecological disparity in spite of strong biomechanical constraints
imposed by flight. Modular skeletal evolution is generally accepted to have facilitated this …

Episodic pulses in morphological diversification are a prominent feature of evolutionary
history, driven by factors that remain widely disputed. Resolving this question has proved …

The placental skull has evolved into myriad forms, from longirostrine whales to globular
primates, and with a diverse array of appendages from antlers to tusks. This disparity has …