I don't think I've ever seen Professor Martyn Poliakoff smile so much.
Last week we visited Cleland Wildlife Park, in my home town for Adelaide, Australia.
The staff were kind enough to give the professor a short opportunity to hold one of their koalas, called Hank.
It was the fist time I've seen the professor stop talking about chemistry. He seemed captivated!
But don't worry, a few minutes later we retreated to a nearby eucalyptus tree and The Prof made this video about the chemistry of koalas (or koala bears, as he couldn't help calling them!)