Gripping Stuff

How do flies crawl up smooth surfaces and why do bats not fall from their perches when sleeping? Finding out how animals perform their amazing gripping feats has occupied Dr Graham Walker for 20 years. By contrast, Professor Tony Kinloch has devoted his life to developing glues for human use. In this lighthearted comparison between animal and human gripping technologies, these experts find out if man can beat nature when it comes to holding on.