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.
Karin Schrieber, Sarah Catherine Paul ... Elisabeth Johanna Eilers
Inbreeding compromises floral traits and reduces pollinator visitation rates disproportionally in female relative to male individuals in a dioecious plant and may thus interfere with the equilibrium of a complex co-evolutionary plant-insect relationship.
Alexander J Tarashansky, Jacob M Musser ... Bo Wang
Mapping single-cell atlases throughout Metazoa systematically characterizes cell type diversity and the evolution of their associated gene expression programs.
Vita Stepanova, Kaja Ewa Moczulska ... Svante Pääbo
Purine biosynthesis is reduced in humans due to a single amino acid substitution in adenylosuccinate lyase that occurred subsequent to the divergence of modern humans from Neandertals.
Sumnima Singh, Patricia Bastos-Amador ... Miguel P Soares
Ggta1 deletion in mice shapes and reduces the microbiota pathogenicity and probably contributed to the natural selection of GGTA1 loss-of-function mutations in the ancestral primates that gave rise to humans.
Artificial selection for increased tibia length in mice made their skulls longer, narrower, and flatter, suggesting that even distant skeletal regions can evolve as correlated responses to selection acting locally.
Anjali M Prabhat, Catherine K Miller ... Jeremy M DeSilva
The human-like joint proportions of Australopithecus afarensis evolved independently, making 'Lucy' and her kind the earliest known evolutionary experiment in obligate bipedalism.
Rachel A Johnston, Philippe Vullioud ... Jenny Tung
In cooperatively breeding Damaraland mole-rats, transitioning to 'queen' results in extensive gene regulatory and morphological remodeling, but also costs to skeletal integrity that scale with reproductive investment.