For us naturalists the most exciting things are the things we don't know, those that we have left to learn. Finding out something new is a lifelong joy.
For me one of the best bits of my job is meeting people who are more knowledgeable about a subject than me and who are keen to tell me all about it. Very often of course such knowledge comes from a lifetime of enthusiastic interest or study and thus my tutors are 'older' folk.
What a real treat it was to visit Jake this week. He is nine... nine and already brimming with real expertise in the field of bones and skulls and as a happy consequence I learned a lot. His bedroom is the perfect mix of skulls and Star Wars... we talked for hours!
It seems he enjoyed it too and you can read about our day on his blog: 'Today I was filmed for Autumnwatch'.
Editor's note: You can watch the film of when Chris met Jake on Autumnwatch, 8.30pm Friday 25 November on BBC Two.