The gentle genius of bonobos
Savage-Rumbaugh's work with bonobo apes, which can understand spoken language and learn tasks by watching, forces the audience to rethink how much of what a species can do is determined by biology -- and how much by cultural exposure.
Elaine Morgan says we evolved from aquatic apes
Elaine Morgan is a tenacious proponent of the aquatic ape hypothesis: the idea that humans evolved from primate ancestors who dwelt in watery habitats. Hear her spirited defense of the idea -- and her theory on why mainstream science doesn't take it seriously.