Dr Keith Jensen is an animal behaviourist who got interested in the animals that are human beings.
Interestingly, he digs deeper into human psychology by studying chimps, other apes and monkeys.
I spoke to him to find out what non human primates have to teach us about what makes humans tick. The conversation was fascinating.
Listen in, and explore the evolutionary clues that help shape who we really are.
Listen To The ShowAlun Parry is Director of The Liverpool Psychotherapy Practice