Most animals, including humans, have bilateral symmetry, which means our bodies are pretty symmetrical. At least on the ...

Studying how neural crest cells journey through the embryo, this Caltech developmental biologist has revealed how they form major cell types, including peripheral neurons, bone, and smooth muscle. In ...

A SELECTIVE action has been observed 1 when the allantoic membrane of the embryo chick is exposed to homogeneous X-radiation obtained by crystal diffraction.

There were 172 live births, 10 spontaneous abortions ... Following the publication of the results of the chick embryo study in the newspapers, we received many calls from women who were pregnant ...