Summary: Imaging of mouse X chromosome activities reveals that they undergo reprogramming and reactivation while the primordial germ cells form clusters and proliferate in the genital ridge.
Autumn migratory orientation and route choice in early and late dunlins Calidris alpina captured at a stopover site in Alaska
Summary: Orientation experiments with dunlins captured in Alaska during autumn migration confirm orientation to distant wintering areas. Route simulations revealed multiple compass mechanisms were compatible with the initial direction of early dunlins wintering in the Pacific Northwest, and for dunlins migrating to East Asia.
Apoptosis is a generator of Wnt-dependent regeneration and homeostatic cell renewal in the ascidian Ciona
Summary: Apoptosis induces Wnt-dependent regeneration and homeostatic cell renewal in Ciona. Apoptosis is required for stem cell survival and is absent in non-regenerating body parts, suggesting a role in asymmetrical regeneration.
Summary: This paper presents a genome wide transcriptional analysis of murine middle ear epithelial cells as they undergo differentiation to a mucociliary phenotype representative of the native middle ear epithelium.
Summary: We have developed renal cell carcinoma murine model that consistently and efficiently recapitulates pulmonary metastasis while allowing in vivo monitoring of tumor progression.
Oviductal fluid counterbalances the negative effect of high temperature on sperm in an ectotherm model
Summary: Our work found that oviductal fluid enhances sperm dynamics and survival and mitigates the negative effects of increasing temperatures on sperm in an ectotherm model.
Local adaptation in thermal tolerance for a tropical butterfly across ecotone and rainforest habitats
Summary: The thermal tolerance of Bicyclus dorothea is habitat-specific with higher CTmax in ecotone populations compared to their forest counterparts, while CTmin was relatively similar across habitats.
Validating accelerometry-derived proxies of energy expenditure using the doubly labelled water method in the smallest penguin species
Summary: This paper investigates and validates the use of animal-borne accelerometers to measure energy expenditure in the smallest penguin species.