As mighty as Tyrannosaurus rex was, its tiny forelimbs have also made it one of the most mocked dinosaurs of all time. The stubby arms of this predator once seemed mismatched to its enormous frame, ...

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 ...

Dr. Jeffrey Laitman joins WIRED to break down every ‘useless’, vestigial organ and structure in our evolved human bodies. From the “wisdom” teeth and our simian tailbones down to muscles made less ...