Kgnu - How On Earth

Pluto Flyby  (start time 1:00): Joel Parker discusses the New Horizons mission from the command center live! Case of the Rickety Cossack (start time 25:00): Beth Bennett talks to Ian Tattersall about his new book,  a fascinating précis of the study of human evolution and some startling new findings showing that our species is one of many hominids in which natural selection mixed and matched various characteristics and abilities. Host: Beth Bennett Show Producer: Beth Bennett Board Engineer: Maeve Conran Executive Producer: Susan Moran Additional Contributions: Susan Moran Listen to the show here: