|01||01||The Human Voice||20020908||20030407|
Dr Gillian Rice investigates the factors affecting the way we speak.
What makes each voice unique and what can others tell from our voices?
|01||02||For Crying Out Loud||20020915||20030408|
A baby's cry can be both heartrending and irritating.
But why do western babies cry more than those in tribal societies? Dr Gillian Rice investigates.
|01||03||Hearing Your Name||20020922||20030409|
Dr Gillian Rice discovers how humans and animals hear their name and make themselves heard above the hubbub.
|01||04||Learning Your Name||20020929||20030410|
Dr Gillian Rice looks at how animals use calls and whistles to recognise one another.
Animals recognise each other by vocalisations, and biologists are now using similar techniques to study endangered species. Dr Gillian Rice reports.