Your neck has the same number of bones as a giraffe's. In fact, nearly all mammals have seven neck vertebrae. In contrast, birds have anywhere between nine and 25. Of the five spine regions, the neck ...

Homeobox (HOX) genes encode a family of highly conserved transcription factors that establish positional identity during embryonic development and maintain tissue homeostasis in the adult. In cancer ...

Evolution has adapted the digits of mammals for an enormous range of uses, from our opposable thumbs to the spindly digits that support bat wings to the robust bones that support the hoofs of horses.

It had long been known that Hox genes are the instructions that lay the groundwork for how different organs, including the gut, are sectioned off and shaped. But the detailed "how" of this process had ...

Endometrial receptivity denotes the brief physiological period in the mid-secretory phase when the uterine lining acquires the capacity to support embryo attachment and implantation. This state is ...