Human embryogenesis is hallmarked by two phases of yolk sac development. The primate
hypoblast gives rise to a transient primary yolk sac, which is rapidly superseded by a …

BACKGROUND Pluripotent cells are generated by embryonic divisions that occur shortly
after fertilization. These cells are transformed into the recognizable outline of an organism …

Gastrulation is a fundamental and critical process of animal development whereby the mass
of cells that results from the proliferation of the zygote transforms itself into a recognizable …

Mammalian embryogenesis relies on glycolysis and oxidative phosphorylation to balance
the generation of biomass with energy production. However, the dynamics of metabolic …

Using embryological data from 14 mammalian orders, the hypothesis is presented that in
placental mammals, epiblast cavitation and polar trophoblast loss are alternative …

When amniotes appeared during evolution, embryos freed themselves from intracellular
nutrition; development slowed, the mid-blastula transition was lost and maternal …

Post-implantation embryo development commences with a bilaminar disc in most mammals,
including humans. Whereas access to early human embryos is limited and subject to greater …

Despite the growing interest in the rabbit model for developmental and stem cell biology, the
characterization of embryos at the molecular level is still poorly documented. We conducted …

A detailed morphological staging system for cattle embryos at stages following blastocyst
hatching and preceding gastrulation is presented here together with spatiotemporal …

Genes are often described by biologists using metaphors derived from computational
science: they are thought of as carriers of information, as being the equivalent of “blueprints” …