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.
Evidence for a largely unexplored radiation of squamates (lizards, snakes, and amphisbaenians) in the Middle to Late Jurassic is revealed by analyses of morphospace expansion, disparity, and evolutionary rates.
Delineating Episyrphus balteatus transregional movements and pollination networks advance a deep understanding of its migration ecology and facilitate the design of targeted strategies to conserve and enhance its ecosystem services.
New digital restorations indicate that the structure and function of the shoulder joint were highly variable among Early Cretaceous birds, with such key features as the configuration of the triosseal canal and the nature of scapula-coracoid articulation showing considerable diversity.
Anne C Meinema, Anna Marzelliusardottir ... Yves Barral
Acetylation of nuclear basket components, following their interaction with accumulating extrachromosomal DNA circles, drives the reorganization of nuclear pore complexes and the loss of cellular viability associated with replicative ageing.
André Nogueira Alves, Marisa Mateus Oliveira ... Christen Kerry Mirth
Wings achieve plasticity in size while maintaining robust pattern via ecdysone, which elicits graded responses for growth rates and threshold responses for patterning rates, in the fruit fly Drosophila melanogaster.
The fate of duplicated transcription factors within budding yeast is described, providing insights into the mechanisms that shape transcriptional networks during evolution.
Luisa Maria Jaimes-Nino, Jürgen Heinze, Jan Oettler
Lifelong continuous reproduction, late-life investment into female sexuals, a short phase of senescence, and reproductive death characterize the life history of Cardiocondyla obscurior ant queens.
The fossil record of abdominal modifications in male scorpionflies documents a relatively late evolution of oppressive behaviour toward a female during mating and suggest degree of sexual coercion greater in Eocene than in any other known scorpionfly, extinct or extant.
