So you can imagine what happens when a mainland species gets introduced to an island. It would be like introducing Al Capone, Genghis Khan and Rupert Murdoch into the Isle of Wight - the locals wouldn't stand a chance.

The kakapo's persnickety dietary requirements are a whole other area of exasperating difficulty. It makes me tired just to think of them, so I think we'll pass…

The system of life on this planet is so astoundingly complex that it was a long time before man even realised that it was a system at all and that it wasn't so…

Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do s…