Humans do not have tails, but do we have “what it takes” for a tail? Hens don’t have teeth, but they have the genes for it. With atavism, it is as if our genomes serve as archives of our evolutionary ...

In the earliest hours after fertilization, an embryo takes its first steps toward becoming a living organism by shedding maternal control and activating its own genetic program. This critical process, ...

Birds and mammals use the same genes to build their face, but deploy them differently in time and space. Cells and evolutionary change: The undifferentiated facial mesenchyme emerges as an essential ...

A discovery upends decades of assumptions regarding DNA replication. The study show that DNA replication in early embryos is different from what past research has taught, and includes a period of ...

Mouse (left) and chicken (right) during development. Both species use conserved signaling pathways to form the craniofacial ...

Metabolism does more than fuel embryos—it sets their developmental rhythm. EMBL researchers found that a sugar molecule, FBP, controls the pace of spine formation, suggesting metabolism may act as a ...

The Gazette offers audio versions of articles using Instaread. Some words may be mispronounced. Every time I see a letter denouncing evolution, I think back to my sixth-grade science class where the ...

Add Yahoo as a preferred source to see more of our stories on Google. As an evolutionary biologist whose career has focused on how embryos develop in a wide variety of species over the course of ...

The research team discovered that glassware used to manipulate and culture fertilized eggs in the fields of assisted reproductive technology (ART), livestock farming, and basic research contains toxic ...

Shapes of beaks and snouts come in an extraordinary range of forms, reflecting adaptations to different lifestyles and ...