Certainly the first true humans were unique by virtue of their large brains. It was because the human brain is so large when compared with that of a chimpanzee that paleontologists for years hunted for a half-ape, half-human skeleton that would provide a fossil link between the human and the ape.

The cheapest and most efficient way of slowing down global warming is to protect and restore the forests, particularly the tropical forests

Every individual matters and has a role to play in this life on Earth.

Some people actually do not like animals - hard for me to understand, but true.

We have turned away from the natural world. Instead, it's all about money and power.

It may sound trite, but young people really are the future.

Every stage of my life set the scene for the next, and at each point all I had to do was say "yes" and not think too much about the consequences.