Scientists have long sought to understand why sea spiders keep some of their most important organs in their legs. By Veronique Greenwood The knotty sea spider has a fundamental physical difference ...

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 ...

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 ...

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 ...