Xuankun Li, Adriana E Marvaldi ... Duane D McKenna
The evolutionary trajectory of phytophagous weevils reveals how ancient host plant shifts and continental drift influenced the development of diverse insect-plant interactions through time.
Daniel J Paluh, Karina Riddell ... David C Blackburn
Teeth are maintained in two amphibian groups (caecilians and salamanders) but were lost in frogs over 20 times independently, a higher incidence of edentulism than any other major vertebrate group.
A new fossil sheds light on the evolution of an aquatic lifestyle in extinct reptiles and supports a close phylogenetic relationship between archosaurs (crocodiles, dinosaurs, birds, and kin) and turtles.
Yuxisaurus represents the first unambiguous armored dinosaur to be recovered from the Lower Jurassic of Asia, confirming the rapid geographic spread and diversification of the armored dinosaurs throughout the northern hemisphere early in their evolution.
Well-preserved fossils reveal an extreme morphological specialization of fly larvae, and broaden our understanding of the diversity of ectoparasitism in Mesozoic insects.
Studying fossils from a mass-mortality event reveals evidence for sexual dimorphism and, unusually, equal numbers of males and females in a herd of dinosaurs.
Consistent bimodal variations in the femoral morphology of various modern amniotes and a remarkably large herd of coeval fossil non-avian theropods evidences sexual dimorphism in dinosaurs.
The tooth replacement pattern of early-diverging ceratopsians helps to understand the origin of the specialized dental system of ceratopsids and provides new insights to feeding strategy transition.
