Men have nipples because embryos are sexually neutral for their first six weeks. Here's the developmental blueprint behind ...

In order for vertebrate embryos to develop their body axes, they require what is known as an embryonic signaling center. This ...

By tracking neural crest cells in catshark embryos, researchers discovered that the molecular toolkit behind face-building is ...

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 ...

Why humans have a philtrum, the groove above your lip, explained by an evolutionary biologist — from embryonic face-building to vestigial anatomy.

We have identified the gene that, when activated, initiates the developmental programme that results in cells forming a human ...

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, ...

Chinese researchers have taken a big step toward a world in which we can cultivate organs for transplant, with the first-ever ...

Scientists very rarely get access to most sharks, the development of their young or the nursery grounds where they grow. So seeing a hammerhead shark (Sphyrna tiburo) embryo, halfway through its ...