Learn more about the gene linked to the evolutionary loss of human tails, and how, in rare cases, some people are still born ...

The majority of fertilized eggs die and are resorbed into the body. ZEISS Microscopy/Flickr, CC BY-SA As an evolutionary biologist whose career has focused on how embryos develop in a wide variety of ...

Human tails, manifesting as caudal cutaneous appendages, have long intrigued clinicians and anatomists alike. These structures, which may be either vestigial remnants of embryonic development or ...

A team of scientists has just gotten a closer peek into one of the earliest and most fundamental steps of creating a human life. Research out today highlights how they captured—for the first ...