Vestigial structures take many forms: organs, behaviors, and even biochemical processes. Their defining characteristic is they are structures that a species has retained, but no longer serve their ...

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 ...

Darren Curnoe receives funding from the Australian Research Council. Wisdom teeth, the palmaris longis tendon, ear wiggling: these qualities were desirable millions of years ago, but due to changes in ...