Certainly jellyfish are seasonal, and owing to a complex range of environmental features there are years when they will appear in far greater numbers.

If there remain places on the planet that are un-known, unspoilt corners, a laboratory for evolution still exists - a snapshot of what the rainforests, polar deserts and high mountains were once like, before man.

I honestly expected me learning Welsh to be met with a certain amount of cynicism, even outright hostility from some. But that hasn't happened.

We have a fantastic array of birds of prey here in the U.K.

My wife Helen is Cornish and both sides of her family are Cornish going back at least a dozen generations. And I envy that and desperately want it for my children.

I don't think your life can be complete without a dog.

I come from an area of southern England that is utterly homogenous. All the history near me is about royalty and fealty, things which leave me cold. I lack roots, and have great warmth for places that have them.

People are used to seeing natural history programmes that have been filmed over many years which are concentrated, focused visions of natural history.

I'm driven by the sense that there are still parts of the planet that no one knows anything about.

I was a big reader when I was a kid.