He lost his claws so he's got his thumbs. But we found him with his claws half torn out.

Up till now Jenny hasn't really known what has happened to the bats after they've recuperated and have been released into the forest.

David Westcott from Australia's science agency CSIRO is also interested in bats, or more correctly flying foxes, but from an ecological viewpoint.

The reason that we're interested in flying foxes is because these guys eat fruit and as a part of that they disperse the seeds through the forest. The seed dispersal is an important process in rainforests so we want to understand the role that the foxes play in that process.

So Jenny let David put tiny radio transmitters onto the bats she released after treatment. The radios send out a signal, so that David can find out, how far the foxes travel in a night of foraging for food, and over what area the seeds are being dispersed. And it's also providing some assurance to Jenny.

The good thing for us is that we get a good record of what happens to these bats after they've been to the hospital.

Up till now it wasn't known if the bats survived after their release, but so far all of the treated bats have gone on to lead a normal bat life.