You can find almost anything on Youtube.
Here is a video from Nikon (maker of great microscopes) of mouse fibroblasts (connective tissue cells) dividing and migrating around a coverslip.
Ah, this is why I became a cell biologist. Look at those guys go! (And to think that some would call them bags of molecules -which they are ... but they are pure beauty) Also notice that the cells must contract and round up just before they divide.
While you're at it visit Nikon U. a web resource for microscopy.
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