Recent breakthroughs in dating ancient samples of DNA and human remains have led to a radical reassessment of human origins. At least ten other early human groups–some with the cognitive capacity to make art, jewelry and herbal medicines–occupied the planet at the same time as our ancestors, Homo Sapiens, and some of their genomes live within us today.  Leading archeologists and paleoanthropologists join Brian Greene to discuss how these surprising new insights are transforming our understanding of early Humans.

For centuries, humans believed the deep sea was lifeless, but new technologies have revealed that this previously hidden realm is home to rich ecosystems, mineral treasures, and an astounding kaleidoscope of life. Oceanographer Dr. Vicki Ferrini, marine biologist Dr. Helen Scales, and explorer Victor Vescovo join Brian Greene for a journey to Earth’s final frontier where for the first time we are discovering what lies beneath the oceans.