It's absolutely unbelievable. We've had so many e-mails and well-wishes from people around the world, it's just stunning.

We still don't know what happened to him, we probably never will.

It gave everyone a lift. We've all felt down since Toga was taken. This was something positive to come out of it all. Visitors can see him at Easter - he'll be out of the burrow by then.

We would like to know what happened, and one scenario is that Toga is no longer with us. The opposition is that somebody who knew what they were doing actually stole him for a private collector. In that case, there's a possibility that Toga is still alive somewhere. We prefer to think of that option, but to be honest, we may never know. We've had to increase our security here so much, which is such a shame that people abuse the trust and health of these animals in such a way.

It's growing so quickly. We can hardly believe it.

It would be nice to know what did happen to him and why he was taken.