The video chronicles the discoveries and theories that have led to our current understanding of evolution, including discarded postualtes, an elaborate hoax that baffled science and the key elements that separate man from ape.

Great transformations focuses on the evolutionary changes that triggered the earth's incredible diversity. Extinction! explores why, then confronts a frightening notion: are humans causing the next mass extinction-- the sixth in the history of life on earth?

"This first-person narrative about an archaeological discovery is rewriting the story of human evolution. A story of defiance and determination by a controversial scientist, this is Lee Berger's own take on finding Homo naledi, an all-new species on thehuman family tree and one of the greatest discoveries of the 21st century. In 2013, Berger, a National Geographic Explorer-in-Residence, caught wind of a cache of bones in a hard-to-reach underground...

Nova and National Geographic present exclusive access to an astounding discovery of ancient fossil human ancestors. Deep in a South African cave, a special team of experts has brought to light an unprecedented wealth of fossils belonging to a crucial gap in the record of our origins that spans the transition between the ape-like australopithecines (such as the famous Lucy) and the earliest members of the human family. The film describes the 2013 discovery,...