This is how we piece together family trees. They were Richard Schafer and Wilhelmina Heller. Wilhelmina went by the nickname- Wilhelmina? Wilhelmina. And Wilhelmina's nickname was Minnie.

Discoveries in the past two decades have added new branches to the human family tree, including species such as the hobbit-like Homo floresiensis and the powerfully built Homo naledi. A pinkie ...