There’s a must-read post over at Anole Annals, describing micro CT of a specimen preserved in amber. Emma Sherratt also scanned a bunch of other specimens – and who’d-have-thunk-it? there’s skin impressions in the 3D shape of the whole soft tissues in the amber! Here’s the pic she posted:
Also check out that ant! WOW!
So why should we scan stuff that is currently rotting undisturbed in collections? Because you never know what you are going to find!