Some hold with the theory that the development of an embryo shows the stages of evolution. In other words, what first develops is fishlike, and then like a small mammal, and then like a lemur or ape, ...

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 ...

People have speculated over the nature of seemingly useless physical characteristics in living things for thousands of years. It wasn't until the late 18th and early 19th centuries, though, that the ...

VESTIGIAL organs have long been a source of perplexity and irritation for doctors and of fascination for the rest of us. In 1893, a German anatomist named Robert Wiedersheim drew up a list of 86 human ...