Yep.
I have a part time job in a zoo in a place called Emmen, here in Holland. A whale beached on one of our islands and it's skeleton was put in that zoo. I have seen the bones of the hind legs myself and I am convinced that they must refer to an ancestor that used those legs.
Creationists are willing to accept that cave fish loose their eyes, but not that whales lost their legs?
Here is a link to what Tuppence will probably point out as 'evolutionist propaganda', but it contains photos of an actual leg that was found on an humpback whale:
http://www.talkorigins.org/faqs/comdesc/section2.html
(You'll have to browse down a bit)