Lauren Laverne here.
We're taking our Easter break, so until we're back on air, we're showcasing a few programmes from our archive.
As usual, the music's been shortened for rights reasons.
This week's guest is the primatologist Dr Jane Goodall, who died last year at the age of 91.
Sue Lawley cast her away in 2000.
My castaway this week is a naturalist.
When she was 26, she travelled to Africa to fulfil a lifelong dream and study animals.
At a place called Gombe on the shores of Lake Tanganyika, her dreams became reality.
From her observation of the chimpanzees who live there came the realisation of how close we humans are to our animal ancestors
and a life devoted to man's relationship to the planet he inhabits.
Her critics have called her anthropomorphic, unscientific, but she is unrepentant.
I 've tried to assuage some of the guilt we all must feel for our inhumanity to man and beast alike,
she says, and I shall go on trying to the end.
She is Jane Goodall.
Jane, yours really is a story of a dream coming true.
Can you remember when you first arrived in the Gombe?
Did you know instantly that this was the place you were going to be happy in?
I knew from the moment that I went along the lake shore,
looking up at the rugged mountains, that this was going to be a challenge,
but that I was going to just have an amazing, extraordinary adventure.